/sci/ - Science & Math

Imagine Russian rockets with American capsule’s

>>11731706
Wouldn't the American capsules be too heavy?

What are the biggest “meme technologies” in Spaceflight? Off the top of my head there’s:

> Aerospikes
>Gas core nuclear lightbulb
>SSTOs
>NTR for the most part
>VASMIR (maybe)
>Antimatter
>Faster than light travel
>Fusion drives
>Torchships
>Bussard Ramjet

Any more anyone can think of?

I want to FUCK an alien.
Not some normie painted-human bullshit either. I don't want my penis anywhere near any ayy that even has a humanoid shape. I want to put my penis in the genital equivalents of a truly alien alien.
I want it so bad bros.

>>11731706
Which Russian rockets? The Soyuz rocket is going to be too small to properly fit any American capsule, and any Soyuz replacement is in a development hell worse than the SLS.

>>11731718
Rocket trains

>new thread created as soon as previous thread was archived
>new thread created before even reaching page 8
>new thread now

wtf is it with this clusterfuck today

>>11731718
>Antimatter
>>Faster than light travel
>>Fusion drives
These for sure. Scifi nonsense

>>11731735
newfags and DM2 tourists are really really mad about anime

>>11731728
They should man-rate Proton. After all, strapping human beings to a tube full of hydrazine and poor safety standards could never go wrong.

>>11731727
>of a truly alien alien.
You understand that a true alien would probably just be a different type of evolved animal. You would just be fucking a bipedal aardvark or something

>>11731718
>EM Drive (or any type of reactionless drives)
>planet-scale terraforming
>spin launch
>space elevators
>sky hooks

>>11731730
Yeet trains are based.

>>11731728
>Soyuz replacement is in a development hell worse than the SLS.
Soyuz replacement and the SLS are both things I'd>>11731740
like to see irl

>>11731701
Space Faggots General

>>11731715
kek

>>11731718
>skylon
>rotary rockets
>space guns
>space elevators (on Earth at least)

>>11731728 #
>Soyuz replacement is in a development hell worse than the SLS.
Soyuz replacement and the SLS are both things I'd like to see irl

>>11731718
space tethers.

>>11731727
Imagine cucking an alien, an entire race and culture predicated on importing other aliens to fuck their wife

Actually kind of worried that's the course humanity is on

>>11731718
Space elevators

>>11731718
Is literally everything that isn't chemical a meme technology to you?

>>11731764
Same. At least the Soyuz replacement has flown. It just hasn't replaced the Soyuz.

>>11731718
All of those things are based and will BTFO you
Except SSTOs

Is the ESA moonbase still a plan? I liked it

>>11731779
I didn't even know they had a plan. Are they even ambitious enough to have one?

>>11731738
Nope they will exist before the year 4000

>>11731783
They named a rover after a fraudess, I don't think they really do.

>>11731779
Hydrolox powered rover. I’m done.

>>11731777
This

>>11731761
Basically a big tether with a mass on the other end that you spin to "throw" things really far into space. The problem is it would be insanely hard to dock with one, and just general safety of a giant wire in space.

>>11731741
Where the fuck are they gonna launch it from? Nobody wants to launch that UDMH shit anymore.

>>11731784
>doubt

>>11731801
Pessimists die measurably earlier than optimists.

How much did this fuck up their plans?

>>11731718
>Rusable rockets

Top kek that shit will never work! You can't just tell your teams "Bye, see you next year!"

>>11731772
>>11731777
I want you to know that I sincerely hope all of those happen in the future.

Anyhow I’m a huge fan of Fusion Drives. I know they’re tough to develop but I believe the only way for humanity to expand beyond the orbit of maybe Ceres is by fusion. That being said, it’s hard, and is often touted as being a certainty.

I love fusion engines bro’s. Imagine zipping across the Solar System at 1% the speed of light. You can travel to the Oort cloud in under three years with them.

You can even go to Pluto in 25 days at 1% the speed of light.

I just have my doubts that’s all

>>11731807
Not pessimism i just don't think thwy will be real technologies

>>11731809
Back to the drawing board, guaranteed. Massive random fuel venting right after a tiny brraaap after only 5 tests? That shit ain't engineered right.

>>11731816
>but I believe the only way for humanity to expand beyond the orbit of maybe Ceres is by fusion

Why? Fission NTRs can get there and back with a traditional Hohmann transfer. It’d take a while, but we’ll manage.

>>11731809
Probably helps in the long run. Unlike Boeing, they don't have enough shekels to afford explosions during human launches.

>>11731822
The existing test setup was barely engineered at all, to be fair.

>>11731822
It was just a failure at the feed lines, hardly cause for redesign.

>>11731816
take your meds schizo

>>11731788
>They named a rover after a fraudess
What do you mean?

>>11731822
>Back to the drawing board of a giant soda can
>Spend 30 seconds there

>>11731850
Don't look up Rosalind Franklin's early life

>>11731846
>It was just a failure at the feed lines
Your uncle working at Nintendo told you?

>>11731822
>Back to the drawing board, guaranteed
Not really. SN5 is already ready. SN6 is almost ready. SN7 is being started. Ground support equipment needs to be more robust it seems like.

>>11731854
Its clear on the video

>>11731831
True every failure is a good design fix but we were so close to a hop

>>11731859
>>11731860
Something flew off during the 5th static fire. Under 2 minutes later, it vents fuel like a mother fucker and goes up in a ball of fire.
Yeah, I'm sure they'll just keep throwing away raptors on the same design.

You may want to look a bit closer at the actual static fire.

Ok, Space Force tv show is pentagon propaganda. Editing is bad and Carrell's acting is bad and there's still a lot of cringey virtue signaling even though clearly its purpose is to justify the space force to the average Netflix viewer.

>>11731816
I think fusion spacecraft will become a thing when SpaceX realizes they aren't colonizing the outer planets with chemical (which will be after they already have several hundred thousand people on mars)

>>11731860
Genius analysis, why do we even pay anyone when a faggot on 4chan can just watch a video. Get this anon a video of the Kennedy assassination STAT

>>11731859
Will SN5 be ready in time for the hop

>>11731869
>clearly its purpose is to justify the space force to the average Netflix viewer.
>while mocking the space force

>>11731878
did you fall for the Brooklyn 99 propaganda too?

>>11731875
>>11731866
>Oh wow a part flew off? Surely we should redesign the whole system from the ground up
Idiots

>>11731882
>redesign the whole system
Said fucking nobody.
Stop being a fucking cultist as well as intellectually dishonest for 5 fucking seconds.

>>11731882
i’m not even saying that I’m saying i’m not going to take a faggot who thinks watching the video means he obviously knows what went wrong seriously.

>>11731866
There is no such thing as "same design" during Starship's development. Each SN is different.

>>11731887
>Back to the drawing board, guaranteed

>>11731878
The entire show is mostly about trying to get people to accept Space Force, not really mocking it.

>>11731878
There's a episode where they unironically confront tv-AOC and convince her that ISS resupply missions are worth more than food stamps

>>11731895
Yeah, for the part THAT FUCKING FAILED YOU ABSOLUTE FUCKING RETARD.
And that's after a lengthy investigation into what failed.

>>11731902
No way, that’s too astroturfed, you have to be lying

>>11731907
You should've been more specific.

>>11731911
No, I shouldn't have to, because language works that way.

>>11731907
You didn't specify it, you double nigger.

>>11731889
It was a weak point on the last static fire and appears to have done the same thing. Its not a big leap

>>11731907
Calm down, also the term "back to the drawing board" normally means a redesign

>>11731902
AYC grandstanding and getting shot down by Carell then Malkovich is probably why a lot of Liberal reviewers hate it.

>>11731920
It does not imply a *full* redesign. It means going back to the engineering stage, which is what is fucking likely to happen since this fucker blew up.

>>11731859
Hopefully SN5 is better

>>11731928
that isn't sn5

Why is it taking ULA so long?

>>11731926
>It does not imply a *full* redesign.
No that is literally what that saying implies

>>11731755

Name 1(one)1 thing Isaac got wrong about space tethers

>>11731933
What do you mean?

>>11731928
>>11731940

>>11731934
All the other companies aren't ideologically motivated like spacex

>>11731939
He failed to account for the BoFA.

>>11731947
bofa?

>>11731945
This. All other initiatives are profit-motivated, SpaceX has a pseudo-ideology behind it.

>>11731809
I wonder if SpaceX reaches out to obtain this video footage from them. Imagine giving video telemetry for free.

>>11731940
Just post the latest actual photo, Anon.

>>11731951

>>11731944
Kek sorry

>>11731872
>I think fusion spacecraft will become a thing when SpaceX realizes they aren't colonizing the outer planets with chemical

I’m 80% sure it’s doable if you leapfrog there from Mars to Ceres to Jupiter

>>11731951

>>11731964
This is the latest diagram for SN5

>>11731963
>>11731969

>>11731961
The photos i posted are a mock up of the pieces together

>>11731967
The distance starts to get exponentially larger out there. Jupiter is over four times as far as Mars on average.

Don't forget her

>>11731986
What happened to it?

>>11731988
cargo only, almost ready for its first flight, going to be on Vulcan

>>11731977
>The distance starts to get exponentially larger out there

Increasing your apoapsis gets easier the higher it already is, and Mars has a much weaker gravity well than Holy Terra; Ceres even weaker still, so going three times as far as Mars’ orbit from low Martian orbit would not be as costly in terms of delta/v as going from LEO to LMO times three. You could aerobrake at Jupiter or Saturn, or Titan, so you can shave off the capture burn delta/v too.

If anyone was looking for idiotic tweets about the SN4 RUD, this clickbait 'news' site has them.

https://www.rawstory.com/2020/05/elon-musk-mocked-after-starship-explosion-maybe-have-nasa-handle-rockets/

>>11731988
It's still around, and I think it won the next round of the commercial cargo program.

>>11731989
>going to be on Vulcan
Really? Wtf thats cool

>>11731992
Why would anyone want to see that?

>>11731992
> When you realize your wallet was on the rocket
kek

>>11731992

>>11731992
>something beautiful about a police precinct and an Elon Musk hobby rocket going up in smoke within 24 hrs of each other

These people make the strangest connections

Has there been any extra thought put into the mars habitats after the last contest?

How the fuck is spacex still having trouble making pressure vessels? Why the fuck are they having trouble with structural mechanics? Structural mechanics is a lot more well understood than fluid mechanics and things like software. Especially the structural mechanics of stuff that's made out of metal and not weird stuff like composites.

>>11732006
they had a GSE problem this time, the structure was fine until it got blown up

>>11731990
>multi year journeys with 100 people onboard a starship
not happening

>>11732006
We don't even know what failed yet

>>11732004
Leftist NPCs hate elon musk now because he talked favorably about Chloroquine a couple of months ago. They see him as the equivalent of a racist KKK police officer.

>>11731992
>https://www.rawstory.com/2020/05/elon-musk-mocked-after-starship-explosion-maybe-have-nasa-handle-rockets/
holy fuck these twitterfags know nothing about rocketry

>>11731727
Just fuck an octopus. Make sure it's a girl octopus though - don't want to be faggy.

>>11732015
Yeah and its a waste of time to try to correct them because for every one you engage with there are 100 others who think the exact same shit

>>11732004
>police precinct
What is it referring to? The site is blocking my adbock and I don't want to give them money.

This rocket will take the esa where?

>>11731992
>giving them clicks
How much time did you spend finding that rando article?

>>11732020
To GSO more cheaply than Ariane 5.

>>11732018
you must not be american. google it and look at news

Someone on Ars said it was likely a quick connect failure on detanking that caused fuel to leak. They said that it's similar to how SN3 was lost and that SpaceX is likely cutting corners on the issue to get Starship done cheaply, so if they want the explosions to stop then they'll need to stop being cheap.

>>11731986
Absolute madmen at SNC want to make a crewed version, if nothing else could serve as a perfect CRV for ISS I guess

>>11732024
Fucking boring. Europe needs a goal

>>11732019
Make a bot that engages them then

>>11731816
If you had asked me a few years ago how long it would be before fusion rockets, i'd have said a minimum of 50 years, based off of the limitations and inherent bulk of tokamaks. But tokamaks are starting to lose their status as the only game in fusion-in fact it's starting to look like humanity pulled a big oopsie when we walked away from the first serious concept for a fusion reactor-the Z-pinch.

Z-pinch is a self-reinforcing phenomenon-you generate a current through a column of plasma, this creates an inward compessing effect in the elctrified plasma, which heats up and increases the strength of the magnetic field and on and on until BOOM your ion energies get to 10 kev and fusion kicks in. But the catch is that any slight instabilities in the pinch cause it to lose coherence-you get kink instabilities and all other sorts of plasma-magnetic fuckery that tears the plasma apart before you get good confinement.

They tried fixing it with external magnets and other schemes, but the tokamak arrived with much better performance and sucked away almost all attention. The idea was thrown into the dustbin for something like 40 years.

>>11732038
And people are starting to take it seriously again?

>>11732038
https://newatlas.com/nuclear-fusion-breakthrough-z-pinch/59257/

Thanks for sending me on this journey anon, now I've got a lot of reading to do

>>11732033
It does have a goal; to maintain independent European launch capabilities.

>I heard a someone at the press site say “He’s just a YouTuber”(not realizing I heard)Yup! I’m just a YouTuber who has to run every one of my cameras, run audio, do my own research, host, post, edit, do everything your entire crew does. I would never say “You’re just a camera guy”
S E E T H I N G

>>11732020
>>11732033
Europe is going for lunar base with ruskies

>>11732056
Talking to yourself again, schizo-kun?

>>11732006
>How the fuck is spacex still having trouble making pressure vessels

Just let boing do it!

>>11732065
He was quoting Everyday Astronaut, stop starting shit.

>>11732054
Which is good. But they need to go beyond that

>>11732073

>>11732057
Let's hope so

What's the weather looking like for tomorrow, been away all day driving.

>they forgot hammer time

>>11732085

>>11732038
During the 90s, the theoretical foundations of a method to stabilize the Z-pinch were thought up at the University of Washington. Instead of trying to squeeze the plasma with external magnets, which presents all kinds of extra difficulties with rapidly adjusting your field to deal with the insanely fast instabilities in the plasma, you would fight against a scaling instability with a scaling counter-instability-a sheared flow,one that was slower closer to the plasma and faster further away. As any given instability starts to arise in the plasma and pushes its way out,it encounters more and more resistance that pushes it back, mitigating the plasma-breaking instabilities that make normal Z-pinch plasma so ephemeral.

Now that certainly makes intuitive sense-but it remained an untested postulate for some time. But that has changed.

Even as we speak this concept is being explored by an ARPA-E funded team of WU physicists, and has already demonstrated a 5000-fold increase in the lifetime of Z-pinchs and ion energies in excess of 1 kev.
This is a linear fusion reactor that uses no superconducting magnets, and can be efficiently adapted to aerospace applications, especially if facilities are made to use D-D fusion to produce helium-3 fuel to allow for fusion engines that produce less neutron radiation and require much smaller amounts of shielding.

Fusion rockets could be in use within 20 years.

>>11731701

Archaic technology general?

Daily reminder that they're using 13th century mysticism to launch vehicles into orbit....

>>11732027
they seem to have gotten their spending to be pretty optimal for the tank structure after the first few failures, I'm sure they'll get the GSE done better soon

Why did pic related fail?

>>11732107
Because it was going to cost at least $24 billion dollars to make it happen.

>>11732107
It was literally too powerful.

>>11732107
>Too expensive!

>>11732075
oh sorry, I forgot how important e-celebs are, I should have googled the quote so I could be buttmad about some faggot too.

>>11732109
Why the fuxk was it that expensive

>>11732069
That tank performed as designed though.

>>11732107
Because it used Shuttle parts. Any program that uses Shuttle parts has to deal with the shitty Shuttle management and oversight.

>>11732117
legacy shuttle parts

>>11732015
>>11732018
They hate Musk because he argued in favour of reopening the economy, and also talked about some antiviral treatments for covid-19. This means you get cancelled by the lefty mob.

>>11732093
Imagine Artemis missions setting up the groundwork for He-3 mining and extraction for future fusion powered rockets without even realizing it, exciting

>>11732042
https://arpa-e.energy.gov/sites/default/files/Shumlak_arpae2019_compressed.pdf

https://www.youtube.com/watch?v=b21pxLKnQ30&t=399s

https://arpa-e.energy.gov/sites/default/files/documents/files/BETHE_Project_Descriptions_FINAL.24.20.pdf

About 8 million in ARPA-E funding in the last few years, plus an unknown amount of private investment.

A break-even experiment is currently being assembled. We will know if this works within a few years.

I am cautiously optimistic, but plasma is a right cunt sometimes.

>>11732092
Thank you, nice to see the weather is getting a bit better.

>>11732123
why can't they just be honest they don't know shit about rocketry

https://pls.llnl.gov/news/sustained-nuclear-fusion-z-pinch

>The approach provides a path to nuclear fusion without magnetic coils or large lasers, with the potential to be used for long-duration fusion burns in a compact and low-cost device.

oh shit

>>11732113
No, you just shouldn't have replied seeing as you had no idea what they were talking about yet you still wanted an excuse to start conflict. This is the last (you) you're getting from me.

Any word on what happened?

>>11732141
the bottom fell off

>>11732123
look dude, I know it’s great having easy answers for everything, but lefties have hated musk for a long long time, for a lot of reasons, some real and a lot overblown or fake. It absolutely didn’t start a few months ago, I remember tumblr posts about him being shit/retarded/evil etc from like 2015, off the top of my head.

>>11732142
Is it untypical?

>>11732141
Senator Shelby didn't like how fast they were making progress.

>>11732141

>>11732125
i'm not a fan of the feasibility of helium mining-Momota talked about that a lot in his conception of a he3-d FRC reactor,but the economics of it are so so SO bad-the sheer amount of regolith you need to process to get any sizeable amount of that stuff is astonishing, like we're talking mining projects that put anything we've done on earth to shame. More modern companies looking into he3-d burn an excess of d to generate a constant surplus of he3 in the reactor's exhaust, that's what Helion energy wants to do. (There's a company that's fallen off the face of the earth-the fuck are they up to?)

>>11731869
Apparently the Chinese have a moonbase in the show. Are they up to no good or something?

I was expecting it to be Orange Man Bad garbage, but MIC propaganda isn't any better.

>>11732142

>>11731992
Why did I read all of these

>>11732125
>>11732149
Even with the huge energy payback from fusion, the energy return on investment for mining helium 3 isn't very good.

>>11731809
To discover what exactly caused it and not letting it happen? Eventually at least ONE prototype NEEDED it to explode, not implode or collapse, whatever again. A classic, fire, boom explosion finally happened so that's important data.

>>11732160
Exactly.

(At one point, did you know that the method used to enrich uranium was so energy wasteful that you only got a 25 to one energy return ration on the derived uranium fuel? Now it's like 1400 to one-talk about an optimization!)

>>11732141
Some sort of massive fuel leak ignited, presumably from the rocket fueling lines.

>>11731960
>Mary/NSF and LabPadre wouldn't give Elon/SpaceX the video for free.
Yeah Right.

>>11731777
Go to Deimos
Jump
You become the SSTO
>>11731718
NTR's are perfectly viable they just need to be funded, the shills are a fucking pest though. Gas cores are based.

>>11732168
>that hot blued surface
kino desu

>>11731992
>tranny actually thinks he can do a better job at handling a spaceflight company

>>11732168
Is that part of the test stand on the right? Or did it knock out both?

>>11732038
>you get kink instabilities and all other sorts of plasma-magnetic fuckery that tears the plasma apart before you get good confinement
This is what happens with all fusion designs, the mechanisms of high energy plasma diverge from predictions in weird ways
Tokamaks are good in a way that they are simple and thus care the least about any properties of plasma besides energy, you can just build bigger and bigger and stronger and stronger tokamaks so that they can steamroll the problem away

Why is blue origin taking so long with New Glenn? By the time they have something it will be old news

>>11732148
How do we stop them?

>>11732176
Its a piece of structure that was intended to protect the ground support equipment from test fire related damages. Obviously its limitations are on full display today.

Aerospikes should be researched to the same level that bell nozzles have and i won't rest until it happens

>>11732182
Vapourware: the space company

>>11731878
Generally Steve Carell plays the role of clumsy, goofy, but ultimately good-hearted office schlub. This was his role in The Office. So if they cast him, that means they want you to like the Space Force by the end of it.

>>11731745
I know. That's what I want. Most people's ideas of "aliens" are slightly-weird humans. Or, if the aliens are antagonists, maybe they'll be giant bug people. I want more aliens in media that seem plausible as actual aliens, rather than 90% colored humans so normies can fap to them and 10% bugs so normies can hate them.

>>11732173
It's a bit early for the re-entry test.

>>11732152
China is openly antagonistic without provocation in the show. In the second episode they just destroy a satellite for no reason.

>>11732107
>lmao let's just launch people on an SRB

Their plan to get to mars involved like 16 launches or something.
https://www.youtube.com/watch?v=Tp6yj2k0Fpc

>>11732182
I really wish Blue Origin could come up with a better logo than a FUCKING FEATHER

>>11732209
They had one.

>>11732178
I wish the people who work on tokamaks the best of luck and I have nothing but respect for the people at Tokamak Energy and CFS. I also think we should explore alternative strategies towards creating fusion as an economical source of power and method of achieving high-velocity spaceflight.

>>11731809
They seem to be tossing these things together with little expectation of success to work out construction techniques and quickly answer engineering questions, so probably not as much as people think.

>>11732213
This is awesome.

>>11731902
>ISS resupply missions are worth more than food stamps
They are, though.

>>11732125
The Moon will never be mined for He-3, ever. It exists in maximum concentrations of a few parts per hundred million, which means it's infeasible to even extract from the regolith at all without leaking or losing the vast majority of the tiny amount that's there before you can actually capture it.
He-3 on the Moon is the only nuclear fuel I can think of that would require more energy to extract than we could possibly produce by using it. What we would actually do is make all the He-3 we need, by breeding tritium from lithium then collecting the He-3 that is produced by tritium decay, until we had enough synthesis production that we could power missions to Uranus to scoop gasses out of the atmosphere and extract He-3 from there, since it's way more common there, and since we'd have fusion rockets anyway the delta V and the trip times would no longer be any real issue.

What do you guys think of the space plugs for mars?

>>11732228
Looks pretty good-I wonder what the rad levels in that are?

>>11732228
is there a reason people like the idea of colonizing mars in the next century beyond the memes?

>>11732232
Its double walled and made of composite material. Supposedly its pretty good. Plus it endured a lot more weight than the concrete model penn state made

>>11732242
Because it sounds interesting.

>>11732228
Why build pods to send to mars and 3D print around them and not just build a habitat constructor/factory that can make habitat pods and corridors on site, then stick them into a regolith brick/concrete structural walls?
Also a Mars base or any mass habitation would be built into one mass arcology to save on thermal energy

>>11732242
i wanna escape this gay earth

>>11732242
memes
Especially the "All our eggs in one basket" meme which keeps getting repeated over and over.
People are also basing their idea of what the future of space exploration should look like based off of sci-fi tropes, since that's the only point of reference most people have.

>>11732242
Stagnation, it’s not good for humans
Plus the civilized machine has consumed the Earth and so beyond is the place to escape it

>>11732207
>China is openly antagonistic without provocation
Oh, so just like real life?

>>11732195
Why have one combustion chamber when you can have 100!
3d printing means you can hand wave away complexity

>>11732251
it’s not even approaching practicable. I get wanting to put a human there, but absolutely nothing indicates that we will be close to actual colonies for quite a few generations, and there is no benefit to it.

>>11732242
>pushes space travel technology and heavy payload rockets to higher degree
>will force improvement on vertical farming technology
>will test mental effects of long term space occupation, living at reduced gravity and AI building technology.
>great PR for future space exploration
>better than the moon for various reasons
>will create an economical reason for space operations
>will start a terraforming process
>makes the species interplanetary
I mean is there a single reason not to? At the very least the goal of a martian colony is going to create a bunch of new technologies just like the apollo missions did.

>>11732260
Please get your news someone besides 4chan because china puts a lot of energy into avoiding conflict while still getting what it wants, more so than anyone else in its weight class certainly.

>>11732228
>fuck all shielding
>needs specially refined and sifted grains to sinter
>complicated as fuck
>specialised and delicate machinery that needs to run in harsh martian environment for a very long time to produce any decent amount of them
>for all this you get a tiny cuckbox

Another shit tier NASA boondoggle. The future is mostly tunnels and some domes.

>>11732264
>but absolutely nothing indicates that we will be close to actual colonies for quite a few generations
Musk indicates otherwise, have you not been paying attention? There will be a small colony by 2060 at the latest.
>and there is no benefit to it.
Can you really not think of a single benefit?

>>11732242
Because fuck earth

>>11732167
Light water reactors are like a Rube-Goldberg machine designed to waste as much energy as possible while still making net power. First you mine and extract the uranium. Then you spend megawatt-hours of energy to extract the lighter U-235 isotope and concentrate it, producing a mass of waste 'depleted' U-238 that is many times larger than the U-234 'enriched' uranium, and contains vastly more potential energy content (further waste), and then this enriched uranium is loaded into the reactor and burned up using moderated neutrons, except it can only use ~5% of the U-235 content of the fuel rods before too many fission products build up and kill the chain reaction (because they preferentially absorb neutrons compared to U-235 and don't produce any additional ones), so this fuel rod which still contains ~95% of the energy content it had being loaded into the reactor gets removed and labeled high-level waste where it sits in a water tank releasing decay heat for two years before being put into a steel can and buried in a concrete vault.

If we switched to using breeder reactors, which take extracted uranium from step one and burn up both the U-235 and the U-238 content to 100% completion by continuously removing fission products, we'd get a 2000 to 1 energy return ratio, and in fact we wouldn't need to mine ANY uranium for the next 5000 years, because we would be able to go back and re-dissolve the spent fuel we've already used in light water reactors as well as the waste depleted uranium that was produced during the enrichment processes.

Remember, (((THEY))) don't want you to know that nuclear power is the best power source and that there's enough uranium and thorium easily accessed in concentrated deposits to power the planet for hundreds of thousands of years. In fact, in the average kg of rock making up Earth's crust, there's enough energy content available to get 3x to 4x more return than from burning 1 kg of coal.

>>11732270
Bullshit, fucking chink shills

>>11732270
>sink Vietnamese fishing vessels in international waters on a regular basis
>strong arm countries into not recognizing the sovereignty of an independent country off their coast
>actively conduct ethnic cleansing in Tibet and Xinjiang
China exemplifies basically all the bad qualities of lates 1800s American imperialism without the money and power to export them beyond their region and the added bonus of being a dictatorship.

>>11732195
Aerospikes will never be better than conventional bell nozzles.

>>11732107
The Orion program resulted in a capsule too heavy for it to reach orbit

>>11732261
3D printing means you can say hello to a 30% reduction in material strength compared to conventional machining methods due to being porous and having wildly different crystalline micro-structure, as well as being beholden to your printing times forever. 3D printing is good for rapid prototyping, but normal machining processes are superior for mass production of final products.

>>11732274
>There will be a small colony by 2060 at the latest.
No there won’t. I’m sorry that you bought the hype but there are serious issues that make a colony not likely anytime soon. This is exactly what people said about fucking moon cities being right around the corner in the 20th century.
> Can you really not think of a single benefit?
nothing worth the cost when there are far more immediate problems
>>11732267
don’t disagree with your points but I’m pretty sure that just going there checks these boxes while being actually feasible. A mars colony sounds cool but I think we’re well over a century from it being a reality.

>>11732272
>fuck all shielding
Literally better than concrete
>needs specially refined and sifted grains to sinter
Corn based polymer, mars rock and basalt
>complicated as fuck
Its a 3d printed cylinder, it doesn't get more basic
>specialised and delicate machinery that needs to run in harsh martian environment for a very long time to produce any decent amount of them
Any permanent structure on the moon or mars will be 3d printed because it is easier than any other method
>for all this you get a tiny cuckbox
Its 3 stories tall and 4 major rooms, its better than the alternatives

>>11732264
What do you mean by benefit? Are you talking about money? You've got the cart before the horse-people don't do things to get money, they get money to do things. Mars is flush with resources and living space-people can go there and build themselves lives. that's all you need.

>>11732280
>Seize tanker vessels in international waters on a regular basis
>strong arm countries into recognizing the sovereignty of an illegitimate apartheid state built on ethnic cleansing, terrorism and opression

>>11732281
They will if they get the same amount of R&D

>>11732195
What's the advantage of a variable nozzle geometry? By the middle of the century virtually all space activity will never reach an atmosphere.

>>11732292
>Seize tanker vessels in international waters
We let them go, actually, unless you’re talking about the brits.
>chink talking about apartheid states
Fucking lmao.

>>11732280
A lot of those are pretty common from other countries and again, China makes sure to not do anything that would actually piss anyone off. I’m far from a chinese fanboy but they know they can’t get away with much. Even Turkey is more brazen

>>11732277
Hahahaha you're too right man, i wrote a whole article about this not too long ago-bill Gates is memed as some kind of satanic vaccine rapist but he is actually quite based on nuclear power and his company terrapower could transform all that depleted uranium "waste" the enviro-nihilists whine about into fuel with ease.

>>11732289
>Literally better than concrete

Yeah except you don't have the metres thick walls and ceiling you need

>Corn based polymer, mars rock and basalt

Need to grow and refine corn, a hugely expensive and energy intensive process. Need to grind up, sift and sort rock/regolith another hugely energy intensive process. Need to locate, extract and process basalt, another hugely energy intensive process.

>all this bullshit is easier than digging a hole for a tunnel boring machine and letting it produce infinite space that is much better than that gay cuckbox.

>>11732288
>there are serious issues that make a colony not likely anytime soon.
Name them
>This is exactly what people said about fucking moon cities being right around the corner in the 20th century.
This is different because the government isnt in charge
>nothing worth the cost when there are far more immediate problems
Good thing a billionaire made a company to force our hand then, the same company that is currently getting NASA and military contracts as well as partially completed a sat internet program that is estimated to net around 50 bil/yr when finished.

>>11732299
>defending Bill Gates

Suggest you relocate back to rebbit before Bill injects you with one of his African trial vaccines and renders you infertile.

>>11732288
>nothing worth the cost when there are far more immediate problems

Pack it up lads, we have to feed 5 billion niggers and solve everything before we can go to space.

>>11732294
No, because any materials or manufacturing tech that is developed that makes a future aerospike competitive with a modern bell nozzle will also DIRECTLY improve bell nozzles, thus making it IMPOSSIBLE for an aerospike to improve to be better than a bell nozzle.

This is literally the 'Muh future SSTO beats TSTO" argument all over again. No matter what technological breakthrough you pick, be it superadvanced structures or TPS or propulsion or all three, all of the technologies that would need to exist to even make a reusable Earth-based SSTO viable, let alone competitive, would also directly contribute to making reusable Earth-based TSTO vehicles pull ahead in utility and economics even more.

>>11732289
Where are you going to get multiple warehouse sized spaces of pressurised volume to grow this corn to print this dumb shit?

>>11732288
>but I’m pretty sure that just going there checks these boxes while being actually feasible.
Like the Apollo missions? We stagnated for decades after that. A colony causes more problems that force solutions than a mission does and those solutions will be beneficial on earth.
>A mars colony sounds cool but I think we’re well over a century from it being a reality.
I mean we are less than a decade from a manned mission so i doubt it.

>>11732311
i look forward to helping round up you conspiratards and needle-fucking you full of thimerosol and adrenochrome until you bleed from the eyes and praise the devil.

>>11732301
>Yeah except you don't have the metres thick walls and ceiling you need
Where are you getting that requirement?
>Need to grow and refine corn, a hugely expensive and energy intensive process. Need to grind up, sift and sort rock/regolith another hugely energy intensive process. Need to locate, extract and process basalt, another hugely energy intensive process.
The first few the materials will be shipped there, after that i don't see how that will be an issue

NASA figured out SSTO reusable in the 90s. So why isn't anyone dusting off Venturestar engineers to challenge SpacX?

Yes, I'm aware of aerospike cooling issues.

>>11732336
>NASA figured out SSTO reusable in the 90s.
They didn't.

>>11732324
>because any materials or manufacturing tech that is developed that makes a future aerospike competitive with a modern bell nozzle will also DIRECTLY improve bell nozzles
Thats a pretty big assumption

>>11732338
Honestly, I think venture star was pretty much there. NASA’s obsession with forcing the problematic composite tanks even when they proved the more traditional lithium alloy tankage would still be light enough to work doomed the project.

>>11732267
>I mean is there a single reason not to

I'm curious to see how sustained space travel between earth and mars would pollute our atmosphere. Methalox is kinda clean but it still emits CO2 so with thousands of starships we would maybe see an effect. I think the scientific progress we can gain with Mars colonization would nevertheless counterbalance this kind of problem but I don't know enough.

Does anyone have a link to full Documentary?
https://www.youtube.com/watch?v=Yzm0SI0HsYE

I'm cucked on Discovery homepage, not supported in my country.

>>11732334
>Where are you getting that requirement?

Its been a staple of every single proper habitat design since forever to stop heavy cosmic rays. And if you can't see the issue with all that other shit I guess you are braindead.

>>11732325
>multiple warehouse sized spaces of pressurised volume to grow this corn
Okay its clear you have not put any research into the subject

>>11732359
same boat

>>11732356
A few thousand launches every two years is literally nothing compared to air travel and sea cargo transport.

>>11732296
>What's the advantage of a variable nozzle geometry?
Basically, it means instead of doing close to ideal Isp at the optimized ambient pressure, and progressively shittier at pressures varying from that optimization point, an ambient pressure compensating nozzle (ie aerospike or plug nozzle) gets okay performance across the entire range of ambient pressures. It's important to note that the efficiency of these engines STILL GOES UP OR DOWN depending on ambient pressure, it just doesn't go up or down disproportionate to the ambient pressure change. As you can see on this graphic I made to minutes ago with my ass, the aerospike nozzle does better than a sea level bell nozzle in vacuum, and better than a vacuum bell at sea level, but does not at any point reach ideal performance. This means that an aerospike WILL NEVER be better than a vacuum bell nozzle in vacuum, and WILL NEVER be better than a sea level bell nozzle at sea level. That's the cut-and-dry of it.

>>11732228
The interior design is modern artfag trash that wastes a lot of livable volume with bullshit, but the concept itself seems sound. It took about 30 hours for the machine to assemble a 1/3rd scale model so presumably it would take 90 for it to spool out the real thing. That 90-ton CAT raising itself up off it's own tracks leaning on the thing was pretty impressive for such a fast single layer print. The corn plastic is rarted though, they need to substitute something less resource intensive to source, or just send it in bulk. The project will be essentially self-failing if they gatekeep permanent structures behind something even harder to pull off, like large scale martian agriculture and multistep chemical processes to get plastic from corn oil. They should bury these things halfway into the ground and then add another thicker outer shell with a rooftop water tank for radiation shielding. Something vaguely like mspaint related.
By being buried you don't have to worry about thermal stress on the habitat itself at all, it never sees the sun at all. You can store a lot of water in 10-15 foot tall truncated cone and humans either add a layer of fresh cement afterwards or sand it down a bit to make it smooth if weathering is a concern. It would also make a very powerful layer of radiation shielding.

>>11732362
Are you mass producing houses or printing a handful of them? If you are mass producing you need mass quantities. If you aren't mass producing then why even bother. And that's not even taking into consideration the chemical refining process.

>>11732356
Significantly less than any other transportation industry to be sure

>>11732336
>NASA figured out SSTO reusable in the 90s. So why isn't anyone dusting off Venturestar engineers to challenge SpacX?
If it were figured out in the 90's then SpaceX would be doing it on their own right now. Instead they're doing reusable TSTO because it's better in every way including cost.

>>11732342
>Thats a pretty big assumption
No it isn't. Any material you invent that is lighter or stronger or temperature resistant enough that you can build a future aerospike that gets you a better TWR than a modern bell nozzle will also let you build a future bell nozzle that gets better than that.

>>11732361
>source: your ass
Makes zero sense considering the width would rely entirely on what the material was. Material science is incredibly important in these designs and if you think that wasn't part of the competition then you shouldn't be on this board.

>SSTO autist hijacked the thread

>>11732365
Yeah I researched and apparently a Starship leaving our planets emits 2 500t of CO2 so with 2 000 thousands launch per year we would be at 5 000 000t/y. In comparison planes emits almost 1 billion tons a year, and shipping is a little more. Should have searched before. I really can't see any good argument against what's SpaceX is doing.

>>11732356
Just make the methane using CO2 and water and an energy source that does not emit CO2 and you're carbon neutral. Zero pollution except for the very small mounts of nitrogen dioxide made from blasting the atmosphere with rocket exhaust.

>>11732372
> If you aren't mass producing then why even bother
Because it will take time to build up a colony and by the time they are mass producing, there will be different requirements and personnel on the ground. It will be entirely different.
>And that's not even taking into consideration the chemical refining process
Was literally part of the designs proposed, theres a reason the competition required printing.

What did he draw?

>>11732367
Also to add, the grey line is theoretical maximum Isp given a perfect expansion ratio. Bell nozzles get extremely close to this maximum at their optimized ambient pressure value, but the aerospike never comes as close, instead staying a more-or-less fixed distance away from the maximum because it's an inherently less efficient nozzle design across all pressure ranges. The only time an aerospike out competes a bell is if the bell is operating outside of its optimized pressure range significantly.

Finally, the ideal altitude compensating nozzle design would be a bell nozzle that can smoothly morph from a shape that is sea level optimized to a shape that is vacuum optimized while in-flight. This would put it very close to the grey line at all altitudes.

>>11732391

>>11732390
>>11732381
Stop shilling your shitty egg every fucking thread, fortunately NASA is taking a back seat and Spacex will be bringing their own tbm.

>>11732370
Why would you want a vertical structure at all
Go horizontal and use normal cement + aggregate mixture

They need to be looking at large warehouses not small eggs for 5 people

>>11732391
14 words

>>11732391

>>11732399
I don't give a fuck about the egg but i love talking about future habits and the egg gets the discussion rolling. Plus it won the competition

>>11732370
>It took about 30 hours for the machine to assemble a 1/3rd scale model so presumably it would take 90 for it to spool out the real thing
1/3rd the surface area or 1/3rd the height? Since build time is determined by the number of square meters of wall area it needs to print, going from a scale model 1/3rd the height to the real thing would take more like 270 hours to complete, assuming it wouldn't be slowed down by needing to print a thicker wall in proportion as well, which could put the total print time to close to 1000 hours.

>>11732405
crime statistics meme?

>>11732409
Just send children with the 1/3 eggs then.

>>11732408
That’s just nasa doing a totally pointless competition

Why is it timed if it’s an unmanned vehicle arriving minimum 2 years before people? It’s nothing anyone doing practical work will use

>>11732399
>Shilling
To who?

>>11732011
Didn’t say it was a Starship specifically.

>>11732409
>real thing would take more like 270 hours to complete, assuming it wouldn't be slowed down by needing to print a thicker wall in proportion as well, which could put the total print time to close to 1000 hours.
Which would be fine as the premise of the contest was that it would be printed prior to crew landing.

>>11732402
I figure each comes with it's upsides and downsides. True with horizontal construction you can build more "sprawl" like structures, but that would mean your assembling vehicle would have to either have a much longer and stronger tool arm or it would have to move around a lot more. Granted AI will surely be better by the time anything is ready to be sent to Mars but I'd assume having to change angle and location on the build will simply introduce more room for error with the machines no matter how much smarter they get. With verticals the footprint of your assembler can be smaller, especially if you half-bury your structure in a pit. Plus if we're going the route of ISRU for the basalt then digging the pit will cut down on material sourcing troubles, a good chunk if not all of it could come from right there on site, no need for a bunch of shitty rovers to scoot around collecting tiny quantities of it.
>>11732409
Shit I didn't think about that, but they also do show in their little promo animations that the machine assembling these buildings isn't the one they're using in the competition. I'm assuming it will be proportionally equivalent to the structure, so a 3x larger machine with a 3x larger print head and 3x more supplies for construction. Still the machine will have to be more meticulous, the one they used for the competition still needed some remote intervention to work so it's Mars counterpart would have to be more meticulous, I'd tack on 1/3rd more build time simply so the AI driven printer can be more careful, call it 120 hours instead of 90, a full work week to print out the shell and inner walls, and if they were to build something more like what I posted, probably more like 200 hours to add that above ground shield tank.
Still far from unworkable, the biggest hurdle doesn't seem to be the printer because there's video evidence of it doing a pretty damn good job (for a prototype). The big hurdle will be control AI.

>>11732423
Here's one of those promos, the machine is almost as wide around at it's base as the habitat itself would be with a boom arm capable of raising the smaller print arm more than 30ft into the air.

>>11732171
SSTOs on Earth or equivalent gravity wells, I mean

>>11731779
ESA doesn't even have plans for a manned launcher.

>>11732200
I love bugs. The weirder, the more interested in them I am.

>>11732242
Colonizing Mars is cool. Life is about adventure.

>>11732425
They can barely make their billion dollar shitty car drill a hole into the ground, look at this complicated ass shit, not happening.

>>11731992
>idiotic tweets
Is there any other kind.
Nothing but smug retards.

>>11732416
>Why is it timed if it’s an unmanned vehicle arriving minimum 2 years before people
Because a time crunch adds stress and problems that won't be there during normal operation. It simulates unforseen issues and the structure's flexibility in build. Every competition puts a time constraint on it.

>>11732267
Basically this, space drives innovation, we saw it with Apollo, and would see it with things like mars/moon habitats in ways of sustaining people on limit resources.

>>11732288
>No there won’t.

Yes there will. :)

> I’m sorry that you bought the hype but there are serious issues that make a colony not likely anytime soon.

There are zero serious issues that make a colony not likely anytime soon. Just bury a habitat in the ground, grow food in regolith, and make breathable air from the atmosphere. Simple as.

> nothing worth the cost when there are far more immediate problems

Muh appeal to worse problems fallacy. Don’t care about starving Africans.

>>11732433
>"They"
You mean NASA, these guys aren't NASA, they won a prize from NASA after a live demonstration of the basic concept.

>>11732356
>I'm curious to see how sustained space travel between earth and mars would pollute our atmosphere

Fuck off treehugger.

Any mars with any sizable population would be 3D printed regolith termite mound hive cities to protect against radiation and to minimize heat losses

>>11732433
>rovers
Not an argument

>>11732448
If that’s the case, Mars would be a dead ringer of Geonosis

>>11732433
Sky crane is about as reliable as you can ask in a mars delivery system. If someone can make it, it should be able to work

>>11732391

>>11732402
I'm sure they will eventually but that will be when you have people living there ready to help build. Right now we need some starting structures that work while the starships return to earth

>>11732448
It's interesting, that when materials limitations, temperature regulation and efficiency really start to matter we end up coming up with something very similar to structures other much older species already optimized for tens of thousands of years before our species even existed.

>>11732448
>minimize heat losses
You want to lose heat though, living on Mars will be like living inside a vacuum thermos, the atmosphere won't take away heat for shit because it's so thin and it will only take so long before the ground surrounding your habitat (provided it's buried) heats up and stops acting as a useful thermal sink.

>>11732447
Fulminate. I'll plant a tree on Mars someday.

>>11732463
Maybe, but pollution is a dumb thing to worry about. Space is cooler than Earth

So is the rocket exploding tomorrow or nah?

>>11732458
>Right now we need some starting structures that work while the starships return to earth

The early missions aren't sending their starships back, this has been made very clear. There could easily be dozens on the ground before they decide to start sending them back.

>>11732463
I hope they grow trees in their habitats. Nothing would fix mental issues better

>>11732467
nah
scrubbed again
and again on sunday

>>11732467
I hope so

>>11732467
It's probably not even launching. My bet is it going on Wednesday

>>11732470
I understand leaving 2 starships, everything else is a waste of resources and logistical capability

>>11731718
Open cycle gas core nuclear rockets are within the realm of current materials and technology. The problem is you can only test them in orbit and you need to be shipping a bunch of uranium up there to do so. It's a social/political problem more than anything else.

Personally i think #2 was a better pick

>>11732477
No its not, detach the raptors to send back, cut out the bulkheads and you have a massive living space ready to go. There isn't going to be a shortage of starships if it's going to happen anyway.

>>11732486
Make a Starship on Mars. Not like iron will be hard to find.

>>11732473
Calm down, Dave.

>>11732486
Complicated and dangerous. 3d print some cones and you have the same thing. Plus the cones are designed for habitat unlike the starship that is multirole

>>11732490
Yeah just got to find one of those naturally occurring foundries and you are good to go.

>>11732501
>complicated and dangerous

No

>my 3d printed cuckshack is the same as a pressurised mini skyscraper

No

>Starship is not a habitat

No

>>11732502
Bring one in Starship.

>>11732504
>just bring thousands of tonnes of massive heavy machinery in a starship

>>11732501
>Complicated and dangerous.
How so?

>>11732506
Doesn’t need to be that heavy silly.

>>11732503
1. Cutting rocket engines off of a used rocket is dangerous, so is defueling said rocket
2. The proposal was a 3 story 4 room pressurized tower
3. It is a habitat and a transport, multi role tech is never as good as focused tech.
>reddit spacing
Go back to r*ddit.

>muh autistic 3D printer that accepts only the finest artisan grains of martian dust
vs
>a few guys with shovels and hescos

>>11732514
>1. Cutting rocket engines off of a used rocket is dangerous, so is defueling said rocket

Simple as opening a valve.

>>11732514
>Cutting rocket engines off of a used rocket is dangerous
Just unbolt the engine mount and plumbing.

>so is defueling said rocket
Just open the drain valves.

>>11732508
Because you have to remove engines and fuel from an active rocket? And if anything goes wrong you lose your habitat and your transport. Compare that to a house that is printed for you before you get there.

>>11732514
>1. Cutting rocket engines off of a used rocket is dangerous, so is defueling said rocket

Open valves, tiny amount of remaining fuel dissipates, you can now safely remove the engine.

>2. The proposal was a 3 story 4 room pressurized tower

Are you being retarded? That's not even close to the same size as starship with the bulkheads removed

>3. It is a habitat and a transport, multi role tech is never as good as focused tech.

Generic FUD.

>>11732522
>Because you have to remove engines and fuel from an active rocket?

Unscrew the engines and open the valves so the fuel can leave. Simple as that.

>>11732519
>>11732521
And if those were damaged in any way during the trip? What if it won't open or come off? Its too many variables.

>>11732522
>Because you have to remove engines and fuel from an active rocket?
See: >>11732521

>And if anything goes wrong you lose your habitat and your transport. Compare that to a house that is printed for you before you get there.
If anything goes wrong with the 3D printer, then you have a heap of useless machinery. There's also more that could go wrong with a 3D printer than emptying some tanks and putting carpet and IKEA furniture in them.

>>11732525
Screws are stuck and the valves are damaged from the flight. Now what?

>>11732527
>And if those were damaged in any way during the trip?
The engines? Then the rocket wouldn't have landed.

>What if it won't open or come off?
The engines aren't bolted directly to the tanks. Cutting them off, or taking out any useful components while leaving behind what you can't take off is simple.

>Its too many variables.
Compared to a 3D printer which requires multiple moving parts? No.

>>11732534
Something goes wrong with the 3d printer now what?

>>11732527
>And if those were damaged in any way during the trip?

Fix the damage.

> What if it won't open or come off?

Make it open and make it come off. You must have never been in a machine shop.

>>11732544
>Make it open and make it come off.
This or just leave what can't be taken off. Houses don't need ridiculous mass factions.

>>11732534
>Screws are stuck

Use a drill and core out the screw.

> and the valves are damaged from the flight.

Force them open with a wrench.

>>11732228
>WOOOOOOW 3D PRINTING! WOWSERS, I CANNOT WAIT TO 3D PRINT SOME FUNKO POPERINOS! I CAN WATCH TYRONE FUCK MY WIFE!
Fuck thia stupid bugman shit. This shit is pointless. You'd be better off just living outside on the surface. Without a pressurized suit.

>>11732555
this

Fucking leddit spacing should be a permaban offense.

>>11732555
3D printing will do for space colonies what Sodastream did for soda

>>11732561
>NOOOOOOOO YOU CANT JUST ADDRESS EACH OF MY INDIVIDUAL FUD POINTS THAT I MAKE YOU ARE JUST A REDDITORINO

>>11732555
Who hurt you, man?

>>11732555
I think 3D printing could be useful later but I think it an unnecessary complication for initial habitation.

>>11732528
>There's also more that could go wrong with a 3D printer than emptying some ta
You've obviously never worked on aircraft if you think things are that trivial. The difference with the 3d printer is it is planned to be sent prior to a manned launch so you would know and be able to adapt from earth. It your shit fails and you are stuck on mars what are you going to do? Shit goes wrong, look at Operation Eagle Claw.

>>11732561
No, it should force those who do so to have a tripcode or something that basically exposes them as the plebbit bugman they are.

>>11732539
Now you have a year and 360 days to figure out what to do

>>11732583
Pure FUDposting

>>11732576
It is you who got hurt as a fetus, as I accidentally opened your mom's cervix when I was fucking her. This probably resulted in you being a plebbit beetle.

>dumping fuel is more complicated than a building scale 3d printer for the martian environment
the absolute state

>>11732592
And realise you can't do anything because you don't have anyone there to fix anything and you just wasted multiple cargo flights.

>>11732583
>It your shit fails and you are stuck on mars what are you going to do?

Chill out in the spacious capsule until the launch window.

>>11732555
>Martian equivalent of fucking townhomes
>bugman shit
You're not exactly going to see Single-Family Detached Housing suburbs on Mars, man. These are about as non-bugman as you can get over there.

>>11732583
>You've obviously never worked on aircraft if you think things are that trivial.
Are aircraft so complicated that a valve to drain all the fuel can't be simply opened?

>The difference with the 3d printer is it is planned to be sent prior to a manned launch so you would know and be able to adapt from earth
Adapt how? No one is around to fix it, and robots are notoriously bad at fixing themselves.

>It your shit fails and you are stuck on mars what are you going to do?
Live in the Starship you came to Mars in until the next transfer window. This topic is about repurposing unmanned tanker Starships who landed there previously but never came back. It would be stupid to scrap your only way home without a solid way to live in the new lands.

>Operation Eagle Claw
Relevancy?

Remember this? How off do you think it will be compared to the real thing?

>>11732604
Nuclear families are degenerate and unhealthy. Extended families are the best.

>>11732609
The real thing wouldn't have its front fall off.

Mobile construction yard type machine that builds room pods and corridors from local materials along with swarm intelligence robots that can assemble these and build the structural components from regolith would easily remedy this argument

>>11732613
You made me chuckle.

>>11732604
The bugman shit is the "WOOOOOOW 3D PRINTERINOS! IT'S RICK AND MORTEROTRORTY! FREE FUNKO POPS YEAAAAAAY" crap. The most based way to live in mars is to set up concrete from Martian rocks and make launchpads, with specialized habitation modules under them, inside crevices carved in lava tubes. Like pic related but much, much, rockier.

>>11732627
I’m pretty sure Martian rocks would be normal looking grey beneath the surface

>>11732613
Your pop-sci bullshit will never happen. These robots will need to be radiation hardened, which will also increase mass and stuff. However, I can see various robots being used as scouts and guards for colonies, watching for dust storms and such.

>>11732627
Based.
https://www.youtube.com/watch?v=sAl_72eVrgM

>>11732628
The red is from lights.

>>11732554
>>11732544
>>11732537
My point is that they are sending unmanned missions as a precursor to crewed missions. That is a perfect opportunity to print a few structures to get ready for the astronauts. Being able to go from your ship to a finished structure is safe and easy compared to doing EVA work on an active rocket. Its a no brainer and thats why it has been theorized by NASA, ESA, Russia and China. If you can skycrane a rover, you can 3d print a simple structure.

>>11732628
I know. Iron oxide just coats the soil and surface.
>>11732633
>based space odyssey bro
People assume it's popsci, and various concepts from it, like the monoliths and HAL-9000 are indeed, well, normie shit. However, I guarantee that most normalfags haven't even heard of the sequel known as 2010: The Year We Make Contact, let alone the other 2 books that never got their movie adaptations.

Cool view of Sn4 explosion from Estronaut and Spadre
https://www.youtube.com/watch?v=vIh4aLX3cZQ

https://mobile.twitter.com/lrocket/status/1266525605207502848..

Tom Mueller on twitter : Ever have so much you want to say but just. cant.

>>11732640
>That is a perfect opportunity to print a few structures to get ready for the astronauts.

You mean a perfect opportunity to waste cargo ships that's are needed to transport more important shit

>If you can skycrane a rover, you can 3d print a simple structure.

If you can sky crane a rover you can vent some fuel

>>11732606
>Are aircraft so complicated that a valve to drain all the fuel can't be simply opened?
No they just break often in unforseen ways.
>Adapt how? No one is around to fix it, and robots are notoriously bad at fixing themselves.
Send a plan b alongside the crew launch?
>Live in the Starship you came to Mars
And if that is damaged you now have a life critical situation.
>Relevancy
Planned mission in a desert with well tested aircraft still had a shit load of casualties and equipment failures. Its a perfect example of how you should go out of your way to not rely on your machine alone. Redundancy redundancy redundancy. If you get there and the 3d printed house is faulty then you have starship, if you land crippled then you have the habitat, its safer.

>>11732653
>that's are needed to transport more important shit
Like what?

>>11732653
>If you can sky crane a rover you can vent some fuel
Yes while at higher risk to your crews lives

>>11732657
Pickaxes and shovels

>>11732318
s/feed/kill/

>>11732655
You think things with Starship can fail that easily and horribly, then the 3D printed homes can also fail in the same manners.

>>11732665
Vent the tankers remotely after landing. It's not that hard.

>>11732647
That mass simulator did a hell of a jump, you can see some kind of secondary explosion about the same time it lands

>>11732672
>Vent the tankers remotely after landing. It's not that hard

I’m 60% sure you could just turn on the engines at a low throttle and let them empty the fuel tanks on their own

>>11732686
IIRC rocket engine turbo-pumps generally don't handle suddenly sucking on a vacuum very well. Drain valves would be better.

>>11732647
Looks like they had a methane leak somewhere and ignition turns into an explosion
It’s a real clown show over at Texas lol
Hire more spics at 40k a year muskie

>>11732689
They have valves to refuel anyway, so you could just open those and let Starship have a piss

>>11732704
Would have thought they would have learned their lesson about hiring skilled aryan workers

>>11732710
>so you could just open those and let Starship have a piss
More like a BRAAAAAAP

>>11732712
>imagine being the first man to fart on Mars
>imagine if it was a really loud long fart
>imagine doing it on open mic to mission control
>imagine a pregnant pause followed by your mission commander whispering to himself "sweet jesus..."

>>11732648
hmmmmmm

>>11732724
>imagine a pregnant pause followed by your mission commander whispering to
Mars has an atmosphere, so if powerful enough, you wouldn't even need comms to audibly assert your dominance

>>11732672
>then the 3D printed homes can also fail in the same manners.
The 3d homes won't have the task of interplanetary spaceflight prior to long term habitation. And once again the 3d homes give you the redundancy of 2 habitats where relying on starship gives you only 1

>>11732731
The open mic is so the T*rrans can hear and fear Martian methane production.

>>11732737
Except the 3d homes would be shit.... as homes. They could serve as good storage facilities, and even then, i'd ditch the bug printing and go straight towards manpower and cranes

>>11732672
>Vent the tankers remotely after landing. It's not that hard.
Until something goes wrong

>>11732740
KEK
You can even fart and use it as fuel for the starship

>>11732746
There won't be enough fuel in the tanks for anything beyond a loud hissing effect.

>>11732746
Never leave your house. What if something goes wrong with your car and it blows up? Omg

Ka*BEWM!*

https://www.youtube.com/watch?v=vIh4aLX3cZQ

>>11732647
holy shit

>>11732647
that's rough, they're going to have to completely rebuild the entire thing

>>11732792
Nope. They’ve already made another one

>>11732779
sploosh

>>11732798
I meant the test bed

>>11732800
he went to the afterlife: the PS2 RSOD https://www.youtube.com/watch?v=1uHLQHjtPLE

>>11732744
>Except the 3d homes would be shit.... as homes
Based on what? Its a 3 story 4 room habitat. Much better than the starship will be laid out

>>11732811
they already have another test stand ready to go; you can see it in some of the pics. Just slap on the hoses

>>11732765
>>11732764
You guys just don't fucking get it and its hilarious.

Which one is better.

>>11732811
It’s just some girders and stuff

>>11732647
looks like they only achieved an 80m hop

>>11732830
>he thinks this will ever make a viable pressurised building

Just look at that shit

>>11732855
Seemed to impress NASA and wisthstood a 14 ton excavator

>>11732878
NASA is impressed by shitty rc cars.

>>11732855
That egg thing was stupidly strong. If you sprayed the interior with an epoxy to cover any incidental gaps it would do just fine.

>>11732855
this was a speed challenge so I imagine if they spend a bit more time it'll be cleaner

>>11732900
>That egg thing was stupidly strong.
Not in tension. I don't give a fuck what anyone says, those layers of printed compound are going to delaminate with any significant exterior-interior pressure differential.

>>11732830
I think it's reasonable to say that the egg demonstrated superb structural resilience with a single layer probably no more than 2/3" thick withstanding being lent on by a bucket excavator to the point where the strain was lifting the vehicle up off it's treads. Didn't even completely crush the thing either, only took a chunk out of the top, probably at that ripple in the print where the team was having difficulty earlier. Fuckin cuckcrete cones got pulverized by the exact same machine.
For me that was the most impressive part of the whole thing. It may be useful on Mars or it may not, but it is self evident that this basalt/polymer mix is not only stronger than concrete but actually much stronger, you can see during the build that the concrete structure is much, much thicker.
I'd want to see a more complete build though, say a 50% model enough to fit a full sized room with a functional airlock, and they gotta fix that heating problem with the printer heads that caused that late-build slump. They probably need a wider applicator head and they need to get the arm to lay down a thinner layer at a slower pace so it can cool completely throughout the print. That ought to prevent melting or slumping.

I made a short film commemorating the box. It will be uploaded momentarily.

I just want to live on Mars.

>>11732975
I just want to cum inside pussy on Mars

https://streamable.com/9bf1fm
please watch in full screen and with loud headphones on

>>11732959
Honestly I think they should do a full mock up, it would be well worth NASAs time.

>>11732998
Agreed, they'd have to build the full sized version of the printer and it's rover base and assemble the complete structure remotely, say from a standoff base a couple miles away. That would demonstrate at least that it can be done remotely and at full scale. Have them throw down a couple and subject them to all different kinds of torture testing.

Any new weather predictions for tomorrow? When do they call it?

>>11733001
Too fast for NASA. Would have to require multiple smaller scale testing and verification to give more time for grants to funnel money to where it is wanted by special parties.

>>11733001
Yep it would honestly be a very valuable test. Every base after that would literally just use the 3d printer rover to construct

>>11733006
I think they will send it either way tomorrow

>Bridenstine won't comment on Boeing launching people this year
Oh no no no no no

>>11733017
Boing commercial crew never ever

How old were you when you realised that starship is just a joke rocket program to keep getting Artemis funding. They are clearly putting 0 effort into it all the while defended by their loyal neckbeards twisting shitty welds and 5 explosions in a row as somehow proof it's successful

>>11733001
Hell, I wonder how it would hold up long-term in Earth conditions. Probably pretty okay, being a plastic with rock aggregate. I sort of want a plascrete buttplug house. With some initial seed money they might be able to mature the technology by running a construction company that does municipal housing projects or something.

>>11733021
Weak bait. Don’t reply to it.

>>11733027
Apis cor has been working on what is essentially the same thing for many years now, its not as easy as it's made out to be.

11733021