/sci/ - Science & Math

RIP Arecibo

Hayabusa 2 will land in Australia soon (in 2 days) carry with it asteroid samples.

>>12421363
exactly
and STS-122 launched almost 13 years ago too
it's funny because some people will act almost offended if you assume they don't have any interest in space, but they only know as much as they can learn from 10 minute youtube videos
i'm not sure whether to chalk it up to general apathy, or my own overestimation of enthusiasm for space

>Elon Musk sends you on a mission to investigate the indigenous aliens on a newly discovered planet
>Land and explore the local fauna
>See pic related
>She hasn't spotted you yet
What do you do?

>>12421392
Turn 360 degrees and walk away

I know this is >plebbit as fuck but I though this was hilarious

>>12421392
Use a gun to shoot the animal. Then skin the dead animal and clean out the meat for consumption so I can survive for few more weeks without worrying about food shortage.

>>12421397
>>12421406
>homosexuals on /sfg/
Gays aren't allowed in space

>>12421388
Damn, it wasn't able to deploy the reentry capsule? That sucks, it could've been reused for other missions.
>>12421392
This.

>>12421405
Go back

reminder that he's one of us

>>12421392
>You will never strip Krystal from her skintight flight suit after an intense 8-hour dogfight and huff in a deep lungful of her feet, armpits and anus, and hold it like a bong hit as long as you can

>>12421409
Furfags need to be shot and fed to the animals.

>SN8 delayed to early next year due to a problem after WDR (per NSF source)

Holyshit, Starship is the new SLS

>capsulets

>>12421443
>fed to the animals

>>12421448
*gets blown up by its own srbs in your path*
*gets vaporized on reentry in your path*
Nothin' personal astronauts

>>12421388
live stream list: http://www.isas.jaxa.jp/en/outreach/announcements/002508.html

Is Hayabusa 2 going to burn up in the atmosphere same as 1?

>>12421465
>When the spacecraft returns and flies past Earth to deliver the sample capsule in late 2020, it is expected to retain 30 kg (66 lb) of xenon propellant (of its original 66 kg (146 lb)), which can be used to extend its service and to fly by new targets to explore.[69] As of September 2020, a fly-by of (98943) 2001 CC21 in July 2026 and a rendezvous with 1998 KY26 in July 2031 was selected for a mission extension

>>12421422
Nah he's just curious in the way a dude experimenting with a finger is. He ended up sticking with catgirls or whatever.
>>12421469
Legit looks like a cover of some 80's anime or something.

>>12421469
How did you take a picture from the nightmares of oldspace?

>>12421392
Imagine just pulling her loincloth out of the way and taking a big sniff haha

>>12421469
UUUUUUUUUOOOOOOOOHHHHHHH

>>12421443
This. Weaboos get the rope next.

>>12421463
>we should have continue using the Apollo

Reminder that the US government is sleeping while this shit is going unchecked

damn og dragon was fugly

>>12421487
>>12421443
Uhhh, sweaty it's 2020 people can be attracted to anthrpomorphic animals and spaceships

>>12421504
Good enough for chinks to copy

https://www.instagram.com/p/CIYGjZqHVWi/?hl=en
>This is the engine that will take the first woman to the surface of the Moon. The BE-7 is a high-performance, additively manufactured liquid hydrogen/liquid oxygen lunar landing engine with 10,000 lbf of thrust — deep throttling down to 2,000 lbf for a precise landing on the Moon. The engine will power@BlueOrigin’s National Team HLS lunar lander. Video is from a test this week at@NASAMarshall in Huntsville, Alabama — bringing cumulative test time on the program to 1,245 seconds.#Artemis#GradatimFerociter

>>12421524
Elon fraud musk btfo

>>12421487
Specifically the ones who are into girls that look like this.
>>12421504
Not really, it looked on par with pretty much every other oldspace design at the time.

>>12421528
starship and alpaca are finished

>>12421524
>>This is the engine that will take the first woman to the surface of the Moon
Bezos is already kissing Kamala's boots to not get cancelled?

>>12421524
Jeff really tryna play up the woke angle now to stop them from cancelling him. Kinda sad really

>>12421524
Any source on the 20% deep throttling? That's very impressive if it's true.
>first woman to the surface of the moon
lol. Has anyone here ever heard a human female ever talk about space?

>>12421552
Jeff Bezos is the source...

>>12421552
>Any source
Is Bezos not a good enough source for you?

>>12421554
>>12421556

I mean a real source. Musk says "Tesla FSD will be released [current year + 1]" every year but that doesn't count.

https://blogs.nasa.gov/artemis/2020/12/04/nasa-go-for-green-run-wet-dress-rehearsal/
>In a test readiness review on Friday, Dec. 4, NASA gave the “go” to start the next Green Run test, wet dress rehearsal, for NASA’s Artemis I Space Launch System (SLS) rocket core stage. The wet dress rehearsal is the first time the stage will be fully loaded with propellants and is planned to last approximately 48 hours. The test will begin on Saturday, Dec. 5 by powering up the core stage avionics, and engineers plan to load more than 700,000 gallons of cryogenic, or supercooled, propellant on Monday, Dec. 7.
Which will test first, SLS or Starship? Which will fail?

>>12421558
Wut how's that related?

>>12421558
Musk= hack fraud
Bezos = always delivers and never hypes

>>12421560
Starship to orbit first, SLS has an operational mission before the ss/sh stack.

>>12421558
I don't think Bezos is trying to intentionally mislead here, and if you don't trust him here, then I don't think you'll find a better source short of calling up an engineer working on it.

>>12421443
>implying that's not their fetish

>>12421568
>>12421565
>>12421561
I meant an engineering test, actual numbers, not a tweet.
Wikipedia says the BE-4 is capable of throttling down to 65%, not 20%.
https://en.wikipedia.org/wiki/BE-4#Technical_specifications

>>12421560
SpaceX can't compete with the great patriots of Alabama. First you get all the FAKE NEWS FUD from cunts like loren grush (from the vag/verge) trying to stir shit up. Turns out, they were ahead of schedule all along. Fuck the haters, SLS will fly before Starship limps to orbit

>>12421573
i thought loren gash was a boeing lover

>>12421572
Wikipedia is not a source, it's an aggregator "written" by ""editors""

here's the blog post released by blue-
https://www.blueorigin.com/news/be7-engine-testing

>>12421582
No

You're thinking of kendra horns and senator Shelby

>>12421572
That post is about the BE-7, not the BE-4

>>12421501
They're 50 years too late. Just saying.

>>12421590
>kendra horns
can't believe she lost her election
sad times

>>12421572
Be4 is not be7 cocksuck.

>>12421501
wake me up when they land insects on mars

>>12421605
i would get lost in those asscheeks, i want her to crush my skull with her thighs

>>12421616
Supposedly they landed bugs years ago, though some sources say its silkworms, others say its fruit flies.
http://english.cqu.edu.cn/info/1038/1941.htm
https://web.archive.org/web/20170917115252/http://gbtimes.com/forget-stratospheric-chicken-sandwich-china-sending-potato-seeds-and-silkworms-moon

>>12421629
by insects i meant chinese citizens

>>12421392
purge the xenos
yiff in hell faggot

>>12421389
the scifi of the early space age imagined it as more common than just a single station
it's understandable that enthusiasm drop when reality fall far short of the dream

>>12421658
Based image.

>>12421658
>Musk
>Right wing
He's not an incel who bitches about women and black people on the internet for 8 hours a day

>>12421658
>Elon "I'm a socialist" Musk as libright
>Bezos not a fascist
no.

>>12421691
>>12421699
Holy smoothbrains. Where the fuck did you come from, go back.

>>12421699
Private corporations doing something a government traditionally does for cheaper and better is peak lib right.

>>12421691
Fiscally moderate is still considered Nazism by the left

>>12421699
Do you still believe everything elon writes on twitter? Does 2nd richest man in the world scream socialism to you? lmao

>>12421708
The mark of an NPC is one who can only speak in memes

>>12421722
No it isn't. Stop getting your news from 4chan.

>>12421728
Go back

>>12421710
Maybe in your mind.

Reminder that science is a liberal process, and that every scientist is left of center.

>>12421605
>waddles into your nasa budgeting meeting

>>12421728
cringe

>>12421658
>China
>economic-left
They're more like economic centrists, the idea that China is left wing is perpetuated by people who hate socialism and want socialism to take the blame for China's atrocities (which is actually caused by the government being fascist and not answerable to the people thus not caring if they bomb their own villages).

>>12421798
Yes, there’s zero reason to believe the COMMUNIST PARTY of China is the least bit left wing. The fact that the guy who espoused “socialism with Chinese characteristics” happened to be responsible for one of, if not the largest instance of mass death in recorded history must be a coincidence.

>>12421811
China is authoritarian state capitalist. Just because it has communism in the name doesn't mean it is. In fact it has very little socialist tenancies at all.

do they have hot cocoa on the space station?
will they take some to the moon?
will they take some to mars?

>>12421524
holy shit, blue origin is gonna mop the floor with spacex with HLS

>>12421757
Kek. Try not to roll eyes

>>12421708
Loser.

Makes me sad that we will never have an admin as good as Jim again. Berger says new admin is still a toss up, other than we know it will be a woman.

>>12421691
He’s a businessman and therefore a virtue signaler first and there’s nothing wrong with that.

>>12421499
gotta have faith in the engineers

>>12421811
The reason so many people died under Mao wasn't because of communist ideology, but because he did exactly what Mugabe did and violently plundered his own country causing an economic collapse, murdering literally millions of people directly in this process (and of course the indirect effects would kill tens of millions through starvation).
Although part of the reason for the famine was actually enabled by communism: Since the government owned the farms, people who hadn't farmed a day in their life could dictate how every single farm was run, so you got retarded decisions like the Four Pests Campaign.

>>12421835
It only became state capitalist when it realized a full on command economy a la the USSR is fucking retarded. The rural areas are still very much 20th-century style communist agricultural villages, and the leadership still uses leftist propaganda as a means of maintaining control. Unless you’re one of those idiots that say “communism has never been tried” because Marx pushed for the end goal of removing the state (conveniently ignoring the fact that the group that leads the transition from capitalism to stateless communist utopia always ends up becoming a tyrannical dictatorship), China is pretty communist.

>>12421811
yeah, it's also the PEOPLE'S REPUBLIC, just like how we are a republic :)

LROC has spoken
ching chong 5 has been confirmed

>Box indicates Chang'e 5 lander on the basaltic plains of Oceanus Procellarum ("Ocean of Storms") on 02 December 2020 09:54 EST (14:53:55 UTC). The lander is the bright spot in the center of the outline. The areas around the lander has been brightened due to the descent engine plume impigement on the surface (similar to what has been observed at other landing sites). Outline is 1210 meters wide; north is up. LROC NAC M1361560086R [NASA/GSFC/Arizona State University].

The reason the early USSR and Communist Chinese economies failed so hard wasn't because the economic model is unviable, it's because they take time and skill to set up and revolutionaries aren't true politicians and think that it's easy, especially since they're surrounded by yes men who will tell them that everything is going to plan.
Revolutionaries are warlords, it takes a lot of luck for them to so happen to be a competent politician. Communism is a system that greatly amplifies the power of the leader, so if they're an incompetent yet confident leader they can cause enormous damage.

The only example I can think of where a revolutionary so happened to also be a decent politician is Paul Kagame; though it wasn't a communist revolution, it was because of weak leadership and racial discrimination.

lol more like science fiction general

>>12421920
Raptor is basically the closest thing to a magic science fiction black box engine you can get burning (sensible) chemical fuels

>>12421392
Purge the Xenos

the moon is bumpy

>>12421932
Nope that would be ARCA. Their engine designs are so incredible 4ASS still doesn't understand how they work. We have a few anons in the reverse engineering department absolutely flabbergasted

>>12421941
post the mars one

Aerojet rocketdyne VP believes Elon's timelines are irresponsible. A journalist agrees. How does /sfg/ sleep at night when Elon is so irresponsible?

>>12421863
>shuttle bad
>apollo good
hypocrite

>>12421997
Same way Aerojet Rocketdyne's VP sleeps at night when selling museum pieces at 3x markup
>>12422001
>shuttle bad
>apollo good
Yes

good work, moderation team

>>12422009
he rationalized that by saying it's NASA's fault, which isnt entirely wrong

>>12421997
lmao

>>12421946
best i could find
the internet presence of the MRO is poopy compared to LRO's apparently
can't find hardly any detailed imaging data

>>12422020
>It's just not that easy in rocketry.text

>>12422020
lordy, some wicked mental gymnastics from oldspace. the only ones making the public cynical about space progress is AJ, Boeing, Lockheed, and the rest of oldspace.

>>12422020
>Mars in the 2030s is still a stretch
Exactly HOW LONG do these boomers want to CHAIN us to this FUCKING ROCK

>>12421946
>>12422025
nevermind i'm retarded
didn't even think to check wikipedia

>>12422020
>>12421997

>>12422020
>commercial crew took 9 years!
>BOING: took?

>>12422020
I don’t understand why this new nonsense gets a pass

>>12422020
he also tweeted a slate article titled "The B*d*n Administration needs to do something about Tesla". Kek.

>>12422020
>Seething hard
Fuck Old Space

>>12422020
>risks making the public cynical about our potential in space exploration

Our potential was fucking ZERO AND FURTHER DECLINING until Elon showed up, and its YOUR FAULT you corrupt boomer oldspace CUNTS.

>>12421446
Fuck you retard, stop peddling fake news if you can't provide a source!

>>12422066
Found the article

https://www.google.com/amp/s/slate.com/technology/2020/12/tesla-biden-self-driving-cars-regulation.amp

Read if you like ragebait. Pretty much the whole thing is seething about autopilot killing a handful of dumb boomers who can't read the giant fucking agreement box that says it's not full self driving yet and to pay attention you fat fuck.

>>12422078
>ZERO AND FURTHER DECLINING
your greed has made you weak, capitalist imperialist :^)

>>12422039
ooo v nice anon. i wonder if those low lands are evidence of an ancient shallow ocean

>>12422009
silly capsulet

>>12422066
>>12422066
>What will we virtue signal about today? *shuffles papers* autonomous driving!

I read that article a few days ago, it's absurd that they never mention that autopilot is statistically much safer than humans driving and that delaying autonomous driving development with bullshit regulations will undoubtedly kill hundreds of thousands who will die from human error while driving. It's been years and they still mention the Uber car mowing down that homeless woman jaywalking in the dark.

>>12421997
oy vey goyim

>>12421997
Garbage human beings

>>12421997
>misleads policy makers
That statement speaks volumes. He’s terrified that congress will eventually begin to question why a startup can do more impressive things exponentially cheaper and faster than any of the established aerospace firms.

>>12422111
The fucking schnozzer on that greasy kike

>>12422109
>they still mention the Uber car mowing down that homeless woman jaywalking in the dark
well yeah
because people still jaywalk in the dark
the danger of automated vehicles is not the collision between two automated vehicles
the danger is in the vehicles doing perfectly fine and then whoopsies a dog runs out into the road or whoopsies someone falls down while crossing the street and gets run over
not everything goes perfectly smoothly, and because of this people will always get run over
people much prefer getting run over by other people than they do robots

>>12421448
>>12422105
When I saw the 2nd pic, I initially assumed it was the 1st one and somehow had forgotten that half the suits were blue instead of orange. What the fuck?

Wait did chang'e 5 left chinese flag on moon?

>>12422138
tiny, robotic Apollo 11

>>12422091
Yup and the boomers who own planes would actually know the scope of abilities of an autopilot and that it's one-to-one with Tesla's - an advanced lane-keeping and cruise control driving *assistant*.

we have to stop elon, he is too successful. imagine if hitler had the same power and success as elon? we need to regulate the shit out of space and make it impossible to get any more power, no man should have this much control, it will destroy humanity

>>12422142
nani?

>>12422111

>>12422162
russsians aren't white

>>12422153
Speaking of planes, why are airlines dying to start flying 737MAX again? If I were them, I'd tell Boeing to shove it and rebrand before I tell customers they have the pleasure of flying a death trap

>>12422162

>>12422162
me on the left

>>12422162
>notice something?
>100% qualified astronauts
honestly, I'd rather not have to deal with menstrual blood floating around the cabin

>>12422165
Cucked by the duopoly. Only competitor can't put planes out the door fast enough to replace 737s.

>>12422170
>not wanting to play farmer with mommy kate

>>12422126
>people much prefer getting run over by other people than they do robots
In this case it was both a human and a robot that ran that woman over, how is the robot more at fault? A robot cannot be negligent in an accident unless the code itself is negligent but most vehicle accidents are due to gross human negligence.
>people much prefer getting run over by other people than they do robots
It's not one to one, people are scared of autonomous driving, partly because of the media fear mongering, but it doesn't mean they would take a 10% chance of being hit by a human over a 1% chance by an autonomous vehicle.
>the danger is in the vehicles doing perfectly fine and then whoopsies a dog runs out into the road or whoopsies someone falls down while crossing the street and gets run over
This is one of the areas autonomous driving will exceed humans in because it has a much larger and attentive visual field and it's much better at predicting the paths of objects in motion. The main thing is if the computer the recognizes the object in the first place and Tesla's self driving has already shown to be pretty good at this.

>>12422173
Why doesnt Boeing rebrand the MAX? Hell, why don't they rebrand the whole company? With Starliner and SLS and all the other flops they're responsible for, it's the least they could do

>>12422020
Lead injections. The only vaccine for this.

>>12422165
Because the Max fills a necessary niche, and they prefer it to the alternatives offered by Boeing’s limited number of competitors. High profile accidents traced to a fixable cause don’t mean all that much in the big picture.

>>12422181
Look at that absolute fucking spaghetti jungle of pipes and wires. I would summarily execute the person responsible for such ugly ass work on my multi billion dollar space station.

>>12422186
They’re marketing to large organizations with entire bureaucracies dedicated to purchasing. Unlike in the case of your average consumer product, rebranding is going to have zero effect on their decision.

>>12421997

>Stakeholders

""""Journalist"""" indeed.

>>12422200
Jokes on you, the Russian segment looks all like that, if not worse.

>>12422124
I got blocked by this kike lol

>>12422200
looks fine to me

>>12422100
>i wonder if those low lands are evidence of an ancient shallow ocean
i wouldn't be surprised
if mars was once active enough to have a decent magnetic field, there could've been quite a bit more to mars in the past

>>12422020
it took 8 years to get to the Moon and they did that using slide rules and paper drawings instead of CAD

holy fucking shit these people

>>12422274
>it took 8 years to get to the Moon and they did that using slide rules and paper drawings instead of CAD
https://www.youtube.com/watch?v=q_HCUgtJGoI

launch thread

>>12422325

>>12421945
apparently their water booster wouldn't work because you can't get the needed electricity from batteries. The solution is clear: just plug it into an outlet with a really long cable. I'm a fucking genius

Super Heavy engine mount

>>12422419

>>12422419
the hole in the middle is for the gimballed engine trio, correct?

>>12422433

>>12422440
I can fap to this.

>>12422440
This image was brought to you by Ivan Ivanovich Ivanov of the Super Heavy development team

>>12421465
>>12421388
https://www.youtube.com/watch?v=Dq_6FRV91Hs&feature=youtu.be
Hayabusa 2 reentry stream starts in 4 hours

>>12422162
>A new batch of Chinese taikonauts.
>Notice something? 100% asian.
Well no shit

Will the Super Heavy be landing on land or on a bigass barge?

>>12422499
americans always embarrass themselves when they export their corporate ivy-tower bullshit to other countries

Are there known rocket fuels with heat of combustion between methane and hydrogen?

>>12422499
What's this? "Tweets you'll never see" for $1?

>>12422512
still me, by the way did anyone already experiment with liquid methane / liquid hydrogen mixture fuel (oxydized by oxygen ofc)?
Like 40% H2 and 60% methane?

>>12422540
Wouldn't the methane freeze in such a mixture?

>>12422540
For what purpose? So you'd need a vastly more complicated powerhead? So you'd need 3 tanks with wildly different temperatures?
For no particular gain whatsoever apart from maybe a little bit more mileage out of it which would be lost in the complexity of the engine?

Methane is one carbon atom to 4 hydrogen atoms. There's enough hydrogen there to go around without having to deal with the shit pure hydrogen does like seep through fucking everything and make materials brittle as well as tank fuckhuge.

>>12422512
We need more potent fuels!

>>12421524
>additively manufactured
Just say 3D printed
Buzzwords are stupid

>>12422509
>americans always embarrass themselves when they export their corporate ivy-tower bullshit to other countries
I was listening to the planetary society's podcast and they were interviewing the woman who wrote a book called Operation Moonglow.
The host was absolutely dumbfounded how NASA leadership was pushing for diversity and inclusion for good PR overseas, but the important part of NASA that actually got shit done was 99% heterosexual white men with wives and children at home, however neglected they may have been.
These people genuinely don't understand that their weird ethnomasochistic politics have been forced onto normal everyday working people from the top down.

>>12422162
Russian government needs to abduct Nigerian women and launch them into space in order to appease a Jewish lady on internet

>>12422419
> me on the left, jizzing

>>12422607
NASA was never about science. It was first a way to build national prestige and develop ICBMs in a kosher way during the cold war, and later as a way to funnel money onto contractors.
Of course, western takes on race is not really makings things better(in fact, they are making things much worse, regardless of your views on race and what not, but that is another discussion).
I wonder where Big Tech investments in space and gene therapy will take us. Probably to pic related in the long run, I guess.

which one /sfg/?

>>12422737
>No Star of David design
This post is antisemitic and I'm reporting you.

boss shit

>>12422737
I find the gimble range differences to be interesting. #3 obviously has the most. I wonder how much they need?

>>12422478
> 4 hours
mate you sure about that?
looks like another fucking three to me

>>12422854
It said 4

>>12422859
don't worry i fucked this up too and it's saying two hours from now
the Japanese better have their small littering fine payment ready or we may or may not send a softly spoken letter asking them pay up in a month or seven.

toasty!

>>12422854
God damn. I'll never not be a simp.

>>12422907
Is this poor thing supposed to fly again?

>>12422937
Why not? Who gives a fuck about the paint job.

>>12422941
I can't tell at a glance how much each booster has flown previously.

>>12422422

>>12422937
That's moostly just soot from the engines during the reentry burn.
The booster doesn't seem damaged at all.

>>12422962
Don't tell me you don't anthropomorphise rockets.

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

Anyone have a form-3 or similar resin printer? After seeing this (and figures for /tg/) I'm really thinking of getting one for christmas.

20km? What do you want 18 km for? 15 km is pretty high, but ok, I'll let you hop to 12km.

>>12422440
>My ancestor :)

>>12422969
>Anyone have a form-3 or similar resin printer?
That's for jewelry and dental work, the random cheap chinese LCD printers (which are awful for jewlery work) will do that thing too

>>12422971
you know what to do

>>12422961

Question: what if you made a rocket enginethat used only a little bit of oxygen for starting up, and after starting up it used a super-charger-like mechanism to insert atmospheric air into the carburetor?

>>12422969
This pretty much proves that this >>12422961 would work

>>12422994
You mean like the SABRE? I would use it to endlessly mock the British space industry

>>12421524
post the video outside of instagram

>>12422962
>>12422937
>>12422941
The booster for the current dragon mission looks like shit too. Guess they didn't feel like painting it

>>12422961
still want someone to make an expander cycle aerospike. Seems like a perfect fit.

>>12422994
they're working on it

>>12422969
fucking cool. Impressive that he got mach diamonds.

>>12423027
>looks like shit
Eye of the beholder my friend.

>>12423027
It is odd how rockets are actually able to age in their longer lives now.

>>12423027
It's just a cargo mission, despite using new Dragon 2 capsule. Crew-2 will have a shiny new paintjob again.

>>12422994
rockets are already running at the material science limits of pressure/temp. Your oxygen runs out in about 30 seconds. Any benefit it might add comes at basically creating a hybrid engine with weight and complexity.

>>12423040
PAINT IT RED YA ZOG!!!

>>12422737
#3

>>12423040
looks way better than the "crumpled tinfoil" look of MK1

>>12423040
that isn't the starship's final look though. it's going to much much smoother, probably by the mid teens
in regards to SN numbers

>>12422737
#4

>>12423011
That one would make such a good flyback-booster

>>12423040
>>12423069
Make it checkered

>>12423040
Will they run all that cabling/piping through the insides of the steel tank things?

>>12423098
no, they'll put a raceway over it

Does Musk have a "Plan B" on the off-chance the Starship venture turns out to be a bust?

Upgrades to the Falcon Heavy maybe? Resuable Falcon 9 second stage?

>>12423111
He'll buy launches on Commercial SLS.

>>12423111
Why would it turn out to be a bust? Do you expect it to?

>>12423111
>Does Musk have a "Plan B" on the off-chance the Starship venture turns out to be a bust?
>Upgrades to the Falcon Heavy maybe? Resuable Falcon 9 second stage?
Well SH is more or less identical to Falcon 9's first stage in concept and since latter seems to be working ok, why shouldn't SH? Assuming SH does work they could build a budget disposable SS second stage disposing with the flaps, heat shield etc, or even investigate partial reusability by just bringing back the engines. I think even with a disposable upper stage they'd still be drastically cheaper than anything else out there likely including Falcon 9.

>>12423139
>>12423111
i doubt starship will fail anyways

>>12423124
>Unproven orbital refueling
>Unproven heat shielding
>No abort
>Unwieldy for lunar use
>Likely need for offshore launch infrastructure
I think Starship will (at least mostly) succeed, but there are enough issues with the architecture to keep Elon up at night.

>>12423164
>no abort
how is this an issue for its primary mission, delivering cargo to LEO?

>>12423167
It doesn't matter for cargo, but if they ever want to fly people on Starships without using Dragons to launch the astronauts separately, it'll be a concern.

>>12423164
>Unproven orbital refueling
Simple, use micro g acceleration to slowly transfer fuel
>Unproven heat shielding
TURFOC has been proven on several spaceplanes already
>No abort
Planes don't have an abort now do they?
>Unwieldy for lunar use
So?
>Likely need for offshore launch infrastructure
Just means it'll cost more to develop. But starlink exists, so that is ok

>>12423174
but that's not Starship "failing"

>>12423174
For NASA yeah, but not for SpaceX

>>12423175
>Planes don't have an abort now do they?
Planes have wings. Starship doesn't. Planes also have far less chance of explosion than rockets.
>lunar use
yeah this is a minor thing, Starship is still a success even if it never lands on the Moon

>>12423186
>Starship doesn't
Starship has wings

>>12423188
Starship can't use its aero surfaces to glide to a soft touchdown. If a Starship loses its engines, it's done.

>>12423099
is that how rockets usually handle that stuff?

>>12423188
>starship has wings
Did they redesign it again? Post pics.

>>12423189
They should pack some chutes, I always do when I make spaceplanes in KSP because I suck at landing them.

>>12422200
The whole purpose of that is to be able to disconnect sources and route them to other units.
Kinda like an extension cord if you need to plug something in.
Take your autism elsewhere.

>>12423119
You will be lucky if Orion and Starliner won't be forced to launch on Delta Super Heavy

>>12423111
>>12423119
This. Commercial SLS is the future. Policy makers should create the legal framework for this to happen as soon as possible.

Hayabusa 2 mission control about to go live.

>>12421469
Pathetic.

>>12423227
https://www.youtube.com/watch?v=TKMmWUad1wY
She's coming home, just like her older sister did.

>>12422078
Can't wait for people like Musk to officially declare Space Jihad on oldspace and Urf.

>>12423241
https://www.youtube.com/watch?v=Dq_6FRV91Hs

Reentry in 25 minutes and change.

>>12421997
>>12422020
He's just mad a full flow stage combustion engine can be built for less than 200 million dollars per unit
Also
>Is getting 500 million per SLS launch
>Caring literally at all about Elon musk's mars ambitions
Why does he even give a fuck? SpaceX doesn't sell engines, and doesnt threaten aerojet rocketdynes Monopoly beyond stealing theaunch market, blue origin already stole potential contracts from them too haha

https://www.youtube.com/watch?v=6UngQqiEWxQ
The untranslated stream is better lmao

>>12423274
>Mission control looks like a neet pad
Nice.

>>12423186
>Planes also have far less chance of explosion than rockets.
That is true with modern rockets, but the whole point of starship is to change that anon

>>12423204
well yes most rockets have some raceways on the exterior i believe

>>12421380

頑張って!

>SpaceX's first crewed mission to Mars could be just four years away. Company founder and CEO Elon Musk said on Tuesday (Dec. 1) that he's "highly confident" SpaceX will launch people toward the Red Planet in 2026, adding that the milestone could come as early as 2024 "if we get lucky." Musk made the remarks during a webcast interview with Mathias Döpfner, CEO of the German media company Axel Springer SE. The two spoke at Axel Springer's Berlin headquarters as part of a ceremony honoring Musk, who won this year's Axel Springer Award. "And then we want to try to send an uncrewed vehicle there in two years," Musk told Döpfner. (The two-year target intervals are dictated by orbital dynamics: Earth and Mars align favorably for interplanetary launches just once every 26 months.)
Elon seems a lot more confident nowadays

>>12421565

>>12423297
I get the impression that things are gonna speed up dramatically after SN8. They already have SN9 ready to go and SN10 and 11 are both probably less than a month away. If they can keep the FAA off their back we could start seeing something close to a launch a month.

>>12423247
How much does it cost spacex to built each serial number iteration of raptor, doesn't seem like they spend $50 million every week churning raptors out?

>>12423320
Apparently there are plans for two flights a month after SN8

>tfw no japanese space qt gf

>>12422478
>>12423227
Just tuned in. What's going on now?

>>12423327
The capsule just re-entered.

>>12423327
IT'S BAAACK

>>12423325
That seems extremely optimistic going by their speed of pressure testing, Raptor install, weather considerations, etc. I'm sure they'll get there but probably not for at least another 6 months.

>>12423325
Weren't things supposed to drastically speed up after SN4 and DM-2's launch? Building has sped up a little, but testing hasn't.

>>12423359
Yes but I'd say things are much different this time.

>>12423326
>'''''gf''''

>>12423359
They need a second test stand and more tanks haha

/sfg/ take on Momentus IPO? Getting thirsty for some newspace stock and the options are a bit thin.

>>12423387
Newspace companies should try to remain private if they can, fuck vulturous investors

hop when

>>12422020
Oldspace is actually gonna get shoved off the cliff

>>12423408
Whoever made this should've brought Blue Origin to the front or added transparency to the elon image.
As is, it looks wrong.

>>12423408
2̶0̶ 1̶5̶ 1̶2̶.̶5̶ 6.25km hop is confirmed for Monday

>>12423321
Dumb post

>>12423419
>-5
>-2.5
>-6.25
Anon, pls.

>>12423419
>SpaceX keeps cutting down on the hop height until Starship becomes subterranean

>elon just tweeted potential 6km hop
WAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA

>>12423435
https://youtu.be/7jmuz9dp6ZI?t=21

>>12423435
>the boring company
Oh shit.

>>12423443
Post link or screenshot or you have the big gay

>>12423444
Duck Dodgers is great.

>>12423443
>>12423449
Fake

>>12423454
I've never actually seen it desu, I just remembered this video and thought "hmm, the joke actually works even better with the actual cartoon"
>https://www.youtube.com/watch?v=Gl2pdV-1FRU

A 6KM HOP JUST FLEW OVER MY HOUSE

Kek, insider evidence suggests elon might be downgrading it to a 1km hop to test performance of SN8 in high altitude winds.

>>12423387
Momentus has promise. I don't think they'll go full Virgin Galactic by going public, but it's reason to be a little worried.
It's interesting that they're designing their first tug both for rideshare on Falcon and dedicated launches on Relativity and Gilmour rockets. I guess it protects them from the possibility of SpaceX building tugs of their own, but I don't think pure kick stages for small rockets would be enough justify their business, especially when rideshare on large rockets would choke out some small launchers.
They have a handful of customers already, and if they can hold onto the rideshare tug market, they'll do well.

>>12423476
Look anon, I won't have you or anyone talking shit about Elon's -2km test borehole ok?

Elon Musk just confirmed that SN8 will do a -6,371 km hop to test Starship's heat resistance capabilities while shielding it from high winds

BREAKING: Elon will now just literally hop while dressed as a Starship

>...per ISO terminology, a 'hop' cannot exceed the vertical height of the hopping entity. After which, it is a 'jump'[4]
'fraid it's only capable of hopping 50 meters bros

Is there any timeline where the Russians beat the US to the moon?

>>12423495
Yeah, in For All Mankind.

>>12423495
no Nedelin catastrophe, yeah

>>12423495
Probably one where JFK doesn't get his brain removed, he cans Apollo while trying to make a deal with the Soviets to do joint manned lunar missions, the Soviets play along while delaying their contribution until they pull ahead, and then they land men on the moon instead of the US

>>12423495
Yes in that one

>>12423495
No, the N1 wasn't developed enough to be viable before 1972-1975, and while soviet metallurgy is good, soviet engineering quality is not
The N1 was the only realistic option they could develop, their manufacturing ability was too limited to reduce complexity with larger parts

Orion power and data unit has problems.
Expect moar delays.
https://astronomy.com/news/2020/12/orion-crew-capsule-suffers-a-setback

>>12423523
>their manufacturing ability
they were also poor

>15 meter hop

>>12422162
The liberals in the space journalism sphere are giving me second hand embarrassment. Those dress uniforms are kind of neat though, does anyone know the name of them?

Status update

>>12423417
it's part of the charm you dip

>https://www.youtube.com/watch?v=3BJuPrUeFTk
Reaction from non-space enthusiasts are cringy as fuck. Is this what all enthusiasts feel when non-enthusiasts react to things?

>>12423571
>15 centimeter hop

>>12423582
For a moment I thought she was complaining about NASA, and I immediately thought Twitter would censor the message.

>>12422200
Ok edgelord

>>12423604
I think it's cute, I love amateurs videos of booster landings compared to the live stream. Watching people get excited even if they don't understand what's happening is cute.
https://youtu.be/h8O2rnHEM8s?t=230

>>12423594
...i-i'm not a d-d-dip...

>>12423610
Only for concrete fragments coming from the launch pad.

>>12422200
Agreed. It looks like absolute fucking shit

>>12423523
>The N1 was the only realistic option they could develop, their manufacturing ability was too limited to reduce complexity with larger parts
Besides looking lel so kerbal, what's exactly wrong with the UR-700 that made it an unrealistic option compared to the N1? To me it always seemed like the better option.

9 engines on the 1st stage instead of 30, could actually be transported by rail to Baikonur unlike the N1 that had to be built on-site, 3rd stage is literally just a Proton 1st stage with 3 less engines so everything needed to manufacture it already existed

What if, for a space elevator, you build a massive flying platform. Think like a helicopter, something that can hover, and you hover it at 45 000ft (@ the equator) and you use that as a platform. Then you can cut a huge portion of cable previously needed.
On a scale from 1 to 10 how retarded is this? 6.5?

>>12422162
>White country has white astronauts

Liberals are retards.

>>12423604
I actually hate hearing commentary from non-enthusiasts. If you don't know what you're talking about then shut the fuck up.

>>12421552
They do if they watched Cowboy Bebop or Star Wars.

>>12423665
Nice

>>12423214
You can use velcro cable ties, you know, velcro, the thing fucking invented to fasten stuff in a zero gravity environment? That way you don't have to shit around with zip ties or metal cuffs, just rip the ties off, move the cables when you need to, put the ties back on when you're done so there's not shit hanging out everywhere in a spaghetti mess that can catch on other stuff.

>>12423335
>>12423359

Things did speed up considerably after SN4. There are major hurdles SpaceX has to jump before they can accelerate further iterations. SN8 will be another hurdle for them: triple raptors, reentry maneuvers, dual fuel tanks, raptor re-ignition while in flight (assuming they cut power instead of throttling).
SN9 is practically ready to go at this point because they are confident in the hardware - its the software they need to really start tweaking at the moment.

>>12423637
no, you're just a bigot

>>12423242
SLS is worse than a shoe, it is a plastic flip flop shower shoe!
Worn by Alabama!

>>12422561
Might as well make that shit nuclear too. Maximum depopulation.

>>12423288
cool. Wasn't sure because I know Starship's tank walls are also its outer skin so it has no choice, but not every rocket is like that.


>>12423274
neat

>>12423696
>You can use velcro cable ties
Look at the bundles by her head.
All the other cables wouldn't benefit much by being tied together in an attempt to organize since they are so short.

>>12423625
>Hypergolic crossfeed.

Anyone have the Starship-Soyuz size comparison?

>>12423706
Here's the updated version without the typo

Was the Soyuz objectively better than the Shuttle for putting dudes in orbit?

>>12423762
>Same amount of failures for 10 times more flights, less than a third of the fatalities, much lower cost.
Yeah, it absolutely was, though i wish the Soviets innovated a little.
Also, fuck whoever designed that thing to be cramped as fuck.

did hyabusa capsule already come back?

>>12423774
>fuck whoever designed that thing to be cramped as fuck
>ywn be sandwiched between 2 tomboy ruskie space gfs

>>12423778
Yes. 4 hours ago.

>>12423774
I should correct myself, Soyuz didn't launch that much more crewed missions than the Shuttle, and considering it's been around for a lot longer i'd say they're about the same, so advantage goes to the shuttle in sheer quantity (Also the shuttle can get more payload to space). But safety and cost wise the only rocket that can compete with Soyuz is the Falcon 9.

>>12422020
>risks making the public cynical about our potential in space exploration

hahahahaHAHAHAHAHAHAAAAAAAAAAAAAAAAAAAAAAAAA

HAHAHAHAaaaaaAHAHAHAHAHAAAAAAAAAA

>>12423584
So are they about to have 4 completed tank sections, and is SN10 gonna get aero surfaces soon?

>>12423780
Sorry, almost 3 hours ago.

>>12421538
>now
Guy owns the washington post, he was woke from the start.
>>12421997
Can you imagine these two around when Kennedy announced plans to go to the moon?
>>12422162
Why do Russian photos always look so washed out like they are from a 1970s soviet camera?
>>12423027
Can't they just powerwash it or something, rather than giving it a new coat or leaving it dirty every time?

>>12423798
>Can't they just powerwash it or something, rather than giving it a new coat or leaving it dirty every time?
Surely they need to at least wash the saltwater off them from their journey home on the ocean barges?

>capsulets, will they ever learn?

>>12422020
>He mad

>>12421997
>>12422020
What a sad cynical unenthusiastic existence, and to think that his company was tasked to bring men back to the moon. I wouldn't trust him to run a small plumbers business well.

How many people can be on ISS at the same time before the life support systems get overworked?

>>12423831
I'm guessing 12, because ISS sleeps 6, but there is a short period where you would be swapping crews. But then again, I don't know of a current rocket that can carry 6 crew, even Dragon only carries 4.

>>12423851
I thought dragon could carry 7

https://twitter.com/haya2e_jaxa/status/1335314412270276608?s=21

the capsule found
also kino

>>12423899
Based Nihon does it again

>>12423896
Ah, you're right, it's only NASA that sends up 4 at a time.

>>12423419
wait, was the flop height actually reduced?

>>12423899
Nice

>>12423912
Yeah now it’s 3 kilometers

>>12423899

>>12423928
>3km? Why do you need a permit for 2km?

>>12423788
Holy shit looking at Jupiter makes me so sad. It’s like what the SLS SHOULD HAVE BEEN IF IT WASNT BOGGED BY CONGRESS RAGHHHHH

SLS is not an inherently bad vehicle, but it has a lot of stupid shit.

Hey bro’s, we have the shuttle external tank and boosters. What should we do?
>Oh I know! Let’s make the tank able to support an upper stage on top!
Nice!
>Also let’s extend the boosters to 5 segments
Alright! Let’s reuse the current hardware though...
>No, let’s just redesign the fuel, the internal liner, the nozzle.
Jesus man the new boosters have nothing in common with the old ones
>Also let’s redesign the external tank!
Why? We already have all the segments we need and we have two spare ETs anyways.
>No it’s okay. You know what? Let’s EXTEND the external tank. Imagine the PAYLOAD we can get!
Wait why? It can already put 80 tons into LEO with the current tank and 5 segment boosters!
>No we can throw those out. Let’s use a new alloy!
Why? The old one works fine.

>>12423950
Jupiter, like any Shuttle-derived launcher, was doomed from the start. The Shuttle was built around keeping as many aerospace jobs alive as possible. That simply won't go away if the Shuttle is gone, but the Shuttle parts are still used

>>12421446
If there was actually a problem like that, SpaceX would just pull snate off the pad and get going with snine

>>12423950
Reminder that the only shuttle hardware flying on SLS are the engines. The tank uses a new metal and new tooling. It also has been totally redesigned from scratch to hold top-loads and they blew up a complete tank as a (((test))). The boosters also are completely new. They reuse the segments, sure, but their nozzle is redesigned, fuel is different, their interior is also totally different...damn

KSP bros, I'm dropping here the forbidden tech of the trolling ayys, the Kraken drive. It doesn't require any fuel and has infinite dV:
https://youtu.be/o4gi_DKxBfE

throttleable version (requires piston):
https://youtu.be/boZJqGxIAdk

>>12423950
what a fucking shitshow
at that point they should have just throw the whole thing out of window and build Saturn-5 II with F-1Bs and kerolox boosters

>>12423961
That’s probably how the UFOs that annoy the Navy work

>>12423960
>they blew up a full tank as a test
Literally the only good thing the SLS program did

>>12423961
lolz

When are we going to Mars

>>12423966
8.4 meter wide Atlas core with 3 F-1’s and an 8.4 meter wide Balloon upper stage with 1 J-2X engine can put 50 tons into LEO. If you strap 3 Atlas V CCBs onto it but replace their engine with an F-1, you get like 90-100 tons into LEO.

>>12423966
Merlin has better TWR than F1B, they should have built Saturn V but with 45 Merlins instead of 5 F-1s

>>12423981
Right now, hop in

>>12423981
We're already on mars. You missed the boat.

https://www.nasa.gov/press-release/nasa-invites-media-to-discuss-science-priorities-for-artemis-iii-moon-landing
Is this important?

>>12423993
>>12423995
Conflicting messages here

hop tomorrow pushed back haha :)

NSF talking heads reporting that the Sunday hop is off. Will be testing instead.

>>12423983
that would just look wrong

FUCKING HOP ALREADY

The capsule of ayy lmaos has landed

>>12424004
>Is this important?
It's a "Please don't kill our program" conference. Yeah, it's pretty important for NASA I'd say.

Yeah this shit isn't hopping until sometime next year.

>>12424011
Staticfire/preburner test tomorrow. This was expected, they wanted a static fire test.

>>12424058
They've had a dozen static fires already.

>>12424062
No, the last one was a shorter than normal static fire test, so they weren't fully satistified with it.

FLY STARSHIP GOD DAMMIT

>>12423732
Crossfeeding's only impractical if you're trying to feed the core engines and the booster engines from the same tanks. The way it would've worked on the UR-700 was with basically separate drop tanks on top of the boosters that only fed into the core

Looks like the 10 houses in Boca have still not sold. They're probably gonna wait for the court to take legal actions and create a stink.

STOP IT
WE'VE HAD ENOUGH STATIC FIRES
JUST FUCKING LAUNCH
IF IT EXPLODES JUST LAUNCH SN9
IF THAT EXPLODES JUST LAUNCH SN10
TESTING IS BEHIND PRODUCTION CADENCE
EXPEND TEST ARTICLES TO CLEAR THE BACKLOG

>>12421405
well I like it

>>12422032
Notice how NPC's desperately don't want anyone to be able to leave Earth

>>12422737
#1. the more space between engine bells the better. Also space on the outside edge for landing leg stuff.

>>12422737
can we arrange them in a swastica

>>12424011
>>12424010

>>12422907
>SEVEN flights and still no bath
B1049 is getting real dirty, I hope it makes it to the 10 flight maximum we were promised. Then they'll sell it on craigslist to /sfg/.

>>12424176
Kek

>>12424178
I want it delivered to my property so I can turn it into a house.

>>12424192
You gonna become Diogenes of Boca Chica?
>I DON'T GIVE A FUCK IF YOU'RE ELON MUSK
>GET THE FUCK OUT OF MY ROCKET GLARE!

hmmmmmmmmmm

>>12424178
I did the math, and B1049 has launched approximately 86 metric tons of hardware to LEO. Assuming the last three missions of its life are all starlink launches of 60 satellites at 260kg per satellite, its total mass to LEO will be ~133 metric tons. Almost the same as a fully loaded Saturn V.

>>12423242
>officially declare Space Jihad on oldspace and Urf.
Sieg Zeon!

>>12422961
This is literally just a pressure fed rocket with autogenous pressurization. It would have all of the drawbacks of a typical pressure fed rocket stage (high dry mass, low chamber pressure, low TWR) but would exchange the pressurant gas system (a separate high pressure bottle with a valve) with a vapor generator that used engine waste heat to boil some propellant. My assessment, it'd be a piece of shit but would function about as well as any of the other pressure fed shitboxes out there. If I were doing a pressure fed stage I would just use pressurized gas bottles, but instead of icky helium I'd have gaseous fuel and gaseous oxidizer instead (ie compressed oxygen and compressed hydrocarbon).

>>12424261
>B1049 will soon have lifted more to orbit than any SLS ever could

>>12421997
Elon doesn't have to do shit to make SpaceX stakeholders happy. It's a private company.

>12500m
The moon moves even further out of reach

Is this where I post about kerbal space programme?

>>12424334
Yeah Jim, go on.

>>12424242
"hmm" what, did you think those tiles they have just magically appeared somewhere?

>>12424278
>a singe Falcon 9 booster has launched more into space than a hypothetical SLS block 1B could launch in theory

Is methalox just the objectively best possible chemical fuel combination?
>fluorine memes involve fluorine
>hydrogen requires ridiculous tank sizes and insulation
>more complex hydrocarbons leave soot and coking in the turbines for mediocre density gains
>ethalox evaporates at suspiciously high rates, especially around Russian ground crew

>>12424386
>ethalox evaporates at suspiciously high rates, especially around Russian ground crew
You make it sound like it's a bad thing

>>12424396
>fail to reach orbit
>accident investigation finds the rocket had half the fuel it should have
>ground crew are fucking plastered, swear it was full when they filled it

>>12424386
Is Ethane not usable instead of Ethanol?

>>12423584
SN9 is done?

>>12424386
ClF3+UDMH
>doesn't evaporate
>decent specific impulse
>no ignition troubble
>not bulky

>>12422561
can someone explain to a retard like me why this is such a bad engine design

>>12424430
But muh toxicity

>>12424435
>UDMH
liquid cancer
>ClF3
The fucking fire is on fire.
>asbestos
Asbestosis intensivies
>phenolic resin
carcinogenic
>ClF3 tank pressurized by UDMH combusting inside it, threatening to damage the thin fluoride layer that keeps the metal from burning itself
>UDMH-rich preburner in open cycle
Shoots out a lot of unburned UDMH into the air
>>12424438
Well, that never stopped russia or china...

>>12424435
everything in the image is hypergolic with CIF3 with the possible exception of CIF3 itself

>>12424414
Ethane falls under the "mediocre density gains" category, except unlike propane the density gains aren't worth the Isp reduction.

>>12424430
CLF3 is not as good as N2O4 when it comes to UDMH. Density is only a bit higher, increase heat of hypergolic reaction does not offset increased molecular weight of chlorine atoms.

If you're gonna consider CLF3 oxidizer, your fuel of choice 100% of the time should be boranes. Massive heat of combustion with any oxidizer, reacts especially strongly with fluorine, boron fluoride is a gas even at room temperature (unlike boron oxides which melt at >1000 degrees), etc.

All things considered, except for toxicity, the GOAT booster bipropellant has got to be diborane+ClF3. Super high density, Isp on par with kerolox, AND you don't have coking problems so FFSC is on the table.

>>12424430
>no ignition trouble
Yes, because ClF3 is hypergolic with UDMH. The problem is that it's also hypergolic with plumbing, tankage, turbomachinery, interns, and sand.

>>12424435
The actual answer is that the plumbing setup is retarded.

>>12424480
>FFSC is on the table
God won't allow a ClF3 rich turbopump to exist.

>>12424480
>FFSC is on the table.
>ClF3
>full flow staged combustion
How exactly is an oxygizer rich preburner/turbopump supposed to survive even a few seconds with ClF3?

>>12424486
The only reason ClF3 is hypergolic with a bunch of shit is because of the strained chlorine-fluorine bonds lowering the activation energy. If you build everything out of fluorides, the stuff is effectively as inert as oxygen when surrounded by oxides. Teflon for example would be a pretty effective barrier to prevent uncontrolled ClF3 fires.

>>12422557
>There's enough hydrogen there to go around without having to deal with the shit pure hydrogen does like seep through fucking everything and make materials brittle as well as tank fuckhuge.
I still find it hilarious how hydrogen will seep through SOLID METAL. It's like its trying to actively fuck over anyone dumb enough to use it.

>>12424495
make every single surface in the turbopump and preburner hollow and use them to inject a thin film of UDMH to keep a boundary layer intact

>>12424490
God is dead, and boron toxicity is what killed it
>>12424495
Build it out of a fluoride ceramic. Fluorine can't burn what has already been burned in fluorine.