/sci/ - Science & Math

SLS will reach orbit in 11 months.

>>12530627
Out of curiosity what compels O’Neill cylinder fags to be the absolute worst posters on the board?

Does a scientific explanation exist?

First for beamed power interplanetary spacecraft.

>>12530641
The same issue that infects every niche interest groups: superiority complex

>>12530642
Only if they are launched into orbit by SLS and the command module is an orion capsule.

>>12530641
It's only the shitposters you notice. I love the idea of having a cluster of O'Neill Cylinders at both lunar and solar Earth L4/L5 (so four clusters) for major colonization potential, but I also love the idea of paraterraformed planets and moons and making big fancy torch ships to fly around between them.

>>12530642
How practical is beamed power propulsion compared to something like atomic engines?

>>12530653
i love the idea of fully terraformed planets

>>12530627
Here's to the finest officer in starfleet, ENGAGE

rewatching the 2019 presentation and pretending Mk1 is SN9 because Elon hasn't done a new one

>>12530654
You still have a nuclear power source at some point, it's either the sun or (in the outer system) a power generation station). Beamed power lets you do a gorillion times more with low mass missions where you can't handle the mass of a reactor anyways, or to have more ships than you do reactors, or to entrust crew positions to people you don't trust around a live reactor. The only places onboard reactors are universally better are missions where you're far enough away from the beam source that you need an impractically heavy rectenna/dish to pick up the beam energy, and warships.

>>12530662
>replay of SN8 starts
>birds flying by the camera
>"haha the birds are confused"

https://youtu.be/UXTz-eFDmjc

I'll do some basic Python drone coding this year, and hopefully some more fancy modeling of it

>Omedetou, Shinji!

>>12530680
is the trump flag photoshopped out of this image?

>>12530680

>>12530684
No, I actually have a ton of Trump variants of DM-2 both launch and landing. If you see >>12530685 the boat with the Trump flag is off camera to the right.

>>12530682
>I stay inside on the computer all day, with closed blinds, and don’t exercise
>Why am I depressed ?!

>sliding down the space tube
How fun would that be?

>>12530707
Not enough hops, that's why.

retard here, will starship make o'neill cylinders possible?

>>12530660
We can however only do that for Mars and Venus (and the Moon but lasting only like 10 000 years). Whereas we can paraterraform any solid body in the system.

>>12530746
it will enable in-orbit construction. If o'neill cylinders are ever to exist starship will be an essential step towards that future

>>12530746
it'll start up a space economy which in the future will lead to o'neill cylinders being possible

>>12530746
No. O'Neill memes will only become viable with orbital elevators/rings.

>>12530749
why only lasting for 10000 years on the moon? titan has 1/8th earth's gravity and the moon has 1/6th, and titan has an even thicker atmosphere then the earth. but regardless, i'd rather the moon and mercury be left as forge worlds

>>12530641
Simplest thing for human habitation when we get asteroid mining working.

>>12530746
Yes.
>>12530758
Starship offers cost per kilogram to orbit competitive with elevators.

>>12530760
The low gravity makes gases escape far easier than on other planets, and IIRC the sun also strips quite a bit of the potential atmosphere.

>>12530758
>orbital elevators
>one elevator fails and suplexes all the other ones

>>12530764
again, titan has 2x the atmospheric pressure of earth and lower gravity then the moon. you could also give the moon an artificial magnetosphere just like you could with mars

>>12530749
Sounds like you would have plenty of time to make a permanent method for those planets to stay terra formed and why bother anyway? Why cover half of Mars in oceans when you can use the whole rock as it is without having to worry about polluting a wasteland.

>>12530764
Cover up the sun to protect our atmospheres !

>MUH LOW GRAVITY MAKES ATMOSPHERES IMPOSSIB-
>stands in your path

>>12530771

>>12530654
It would be practical around areas where many craft accelerate/decelerate around a body like LEO, The moon etc.
Having something like a procsima accelerator array for high traffic areas could cut down on travel time quite considerably
Earth could send out craft far faster, Mars colonies would grow quicker and Mercury could be turned into a forge world from how much material there is and how close it is to the sun powering arrays

>>12530769
>lower gravity
What matters is escape velocity and surface temp. Titan could barely retain permanently an O2 containing atmosphere, the Moon could not.

>>12530746
It will make lunar industry possible, which will make O'Neill cylinders possible.
I know it isn't a practical (or feasible) way to do things, but I'm picturing a colossal dry dock excavated into the lunar surface where the main body of the cylinder is built vertically and then launched into orbit to go be filled with dirt at the asteroid-eating greenhouse station.

Hey /sfg/ is there any pair of orbits that a planet and its moon could be in such that the moon is never eclipsed by its parent planet?
I know that some Lagrange points could work as well as having the moon's orbital period be equal to the planet's such that it is always in the same position relative to the planet and star but I feel like those options place the moon too far away from its planet for my liking.

>>12530788
part of the reason the moon is so hot is because one side of it faces the sun for a month and there is no atmosphere to spread heat across the surface

>>12530790
What if the moon is in a polar orbit?

>>12530790
>>12530802
A 90 degree polar orbit would do it, although that would be super unstable since the planet's star(s) would be constantly pulling the moon closer to the ecliptic.

what does this mean? A droneship and an ocean spaceport are two different things. Is Elon implying that their ocean spaceports will be able to move around? Or that for particularly heavy loads starship will launch from land and then land on the spaceport? I wonder if super heavies could hop between locations to move themselves around?

Octopi do not have any bones with the exception of their beaks. So if you are responsible and depraved enough to be literally the life support of your 8 limbed friend, you can debeak it like how you’d declaw a cat and then push your member into its feed chute.

You can then let it subsist on your baby batter.

The Octopus is smart. Very smart. It will learn that without its beak, it cannot feed on anything else but your human seed that has to be milked from you.

Every morning, you will feel your clothes slide off and a damp weight on your lower half.

The sensation creeps up on your body until most of the jiggly mass has enveloped the entire length. It will start pumping as fast as it can for it is hungry.

The animal gyrates its empty stomach and the folds of its brain rubbing on your glands, begging for nutrition.

You climax and give the marine creature’s breakfast. The pumping slows down but doesn’t stop to milk out the last few drops of its meal.

Looking into its yellow animal eyes, it looks back with a thousand-yard stare. This will be routine for all of its meals for the rest of its 3-5 years on this god forsaken planet.

>>12530734
More fun than sliding down your mother's tube, that's for sure.

>>12530637
2021 will be the year of Boeing.

>>12530785
WHY THE FUCK HAVEN'T WE BUILT ONE OF THESE YET GODDAMNIT

>>12530808
why in the fucking fuck would you cross-post this from /biz/

>>12530780
why does this thing have such a substantial atmosphere while most other solid bodies don't?

>>12530808
The correct plural of octopus is octopuses, dumbass.
Also I want to fuck an octopus now.

New Starship TFR all throughout january/febuary.

>>12530822
It stole it from Saturn.
Not really I don't know where Titan got it's sweet atmosphere.

>>12530808
This wouldn't actually work.
Octopus have radula's which are like cat tongues except a 1000 times worse, your dick will be gone in a few licks.

>>12530820
I just saw it on /sp/

>>12530806
We've known SH would launch from oil platforms for like a year now. It's too big for a droneship

>>12530802
>>12530805
I don't think it would unless it were in a very specific orbit such that the time where it's orbital path (not the moon itself) crossed behind the planet and had part of it blocked from the star coincided on an annual basis with the moon being in front of the planet and thus never reaching that point at the only time that it would be blocked from the star (which would be only two days out of its parent planet's year).
Would a solar-synchronous orbit work for a full moon in this situation? I think that might be my best bet if so as it would allow for the moon to both never be eclipsed and also still be close to its parent planet.

>>12530797
I mean we can still easily salvage terraformed Moon, we'd just have to intervene every couple 1000 years or so (or gene engineering some microbe that generates an atmosphere for us).

>>12530817
1. No nukes in space yet so you'd need an implausibly large solar panel array.
2. A high energy laser/particle beam that doesn't spread at hundreds of thousands of kilometers is fundamenatally indistinguishable from a kill sat.
3. SHITTY FUCKING BOOSTERS make building large things in space expensive.
4. Fuck you Shelby.

>>12530788
Venus sunshades when Peter Beck?

>>12530627
Here's to another year without space niggers

NEW YEAR
NEW SPACE

>>12530847
We could acquire a laser CIWS that some militaries are using, center it around a linear accelerator, all powered by a concentrated solar generator and lob the motherfucker into correct orbit using diy rockets
We’ll have a prototype to test

>>12530872
>DIY killsats
Target list:
Beijing
Shanghai
Jerusalem
Tel Aviv
Sacramento
LA
San Francisco
Shelby's house

>>12530641
Just autistic people who have no clue how economics works

>>12530874
That isn’t gonna be any ion cannon with Earth’s atmosphere, using it to redirect NEOs however would make quite a splash
Also don’t forget Jew York

>>12530874
>Vancouver
>Calgary
>Winnipeg
>Edmonton
>Toronto
>Toronto again
>Montreal
>Quebec City
>Ottawa
>Moncton
>PEI
leaf delenda est

>>12530888
Checked and rakepilled. 24 years for a robot arm my ass.

found this on reddit

thoughts?

>>12530903
Why does the platform have to spin and move? This is just the "land it back on the launchpad" meme but the launch pad supports the rocket from the fins; use a fixed structure

>>12530806
Why would they be doing any drove ship shit? That has nothing to do with getting to the moon or mars

>>12530903
Looks wildly over built

>>12530903
Needs more moving parts.

ULAbros, why can't we stop losing?

https://spacenews.com/spacex-wins-150-million-contract-to-launch-space-development-agency-satellites/..

>>12530903
retarded beyond belief lmao

Why can't the launch pad literally just be an above ground flame diverter with Starship suspended above it by the grid fins?

>>12530917
Looks simple enough to me.
>two triangular metal pieces
>one large cushion
>giant pole

>>12530947
Two launches for 150 million
Government launches
What bid would ULA make lol? Double that?

>>12530956
Yea giant fucking structures that move lol
With no suspension beyond a 30 meter wide pillow

>>12530965
Is it any more crazy than landing a rocket from space in the middle of the ocean with a droneship? Or a doing a belly flop maneuver of a giant multi story tall rocket and then relighting the engine to maneuver itself to land?

Crazy sounding things that used be called crazy are now the norm.

>>12530910
>>12530928
moving parts allow it to quickly place the booster back on the launch pad, and refly it in under an hour, as elon said

>>12530824
Actually, if you're pluralizing from the Greek, it'd be octopodes.

>>12530910
>Why does the platform have to spin and move?
the idea is to reduce some of the accuracy demand on the booster. If the tower can move as well then the booster doesn't have to be 100% precise. Besides, it'll need to move anyways to stack SH and SS.

>>12530971
Expect to see 4 strong backs with some sort of band to catch each of the grid fins
Spacex isn’t NASA, you don’t over build structures

>>12530971
The things you describe are problems that were solved primarily by a willingness to take risks and the application of modern computing to aerospace. The issue with the reddit proposal is that it's just dumb and overly complex.

>>12530982
increasing the accuracy demand on the booster seems simpler than making the booster and the platform coordinate movement

>>12530982
Vertical stacking of the Starship is just a meme
It’s not going to happen

>>12530995
that could very well be true! Or perhaps there are limitations to how accurate you can make a thrust-vectoring booster. Not sure!

>>12530995
how would it be any different from a F9 droneship landing?
does the droneship adjust to catch the F9 or does it try it's best to stay at a designated point?

>>12530987
NASA isn't going to build a reusable rocket, let alone a vertical landing one, nor build a rocket vertical landing on the launch pad and catch it with the arm itself.

>>12530627
https://mars.nasa.gov/mars2020/

https://forum.nasaspaceflight.com/index.php?topic=51425.msg2174141#msg2174141
Virgin Orbit NET January 10, with launch opportunities weekly after that.

>>12531017
>Launched:
>July 30 at 4:50 a.m. PDT (7:50 a.m. EDT)
Landing:
Feb. 18, 2021

>>12531019
>Virgin Orbit
lol
On a related note, how long has Virgin Galactic been one year away from commercial flights?

>>12531019
>small sat
>air launched from a 250$ million plane

>>12531030
Literally a decade I think, if not longer

>>12531032
That's not even the worst part. It cost something like a billion dollars to develop LauncherOne, which is maybe an order of magnitude more than Electron cost. At least the 747 is secondhand.

>>12531044
It’s rp1/lox too, they don’t even have the justification for some meme design
And it’s taken 13 years

>>12530746
If it does not, nothing will

>>12530808
Thought this was a /jp/ pasta at first

>>12530637
No, renaming a town in Alabama to "Orbit" and having a part made there doesn't count, Senator.

>2015
>SLS will beat Falcon Heavy to orbit!
>2021
>SLS will beat Starship to orbit!

>>12530827
>>12530822
It’s massive as fuck and sits inside Saturn’s magnetic field so it was protected and accumulated gas while other large moons and planets were having theirs stripped away by the solar wind.

>>12531073
In 2022
>No you can’t launch the James Webb on Starship

>>12531073
>2022
>Artemis 1 will fly before Starship Lunar Demo Flight
>2023
>Artemis 1 will fly before DearMoon
>2024

>>12531084
>2024
>no you can't use a Moonship lander for Artemis 1

>>12530914
>Implying you want all launch facilities in the Estados Unidos or its client states

>>12530653
I love how my Dat Ass Hopper is getting reposted. That was snipped by chance from the labpadre stream on the morning of the SN8 flight by the way.

>>12531102
Hoppy reaction images are one of the best things in /sfg/ aside from the OC and 4ASS shitposts.

>>12531078
>James Webb
That entire project is cursed, if it ever even gets of the ground it will explode, even on a starship.
The curse is called "oldspace"

>>12530947
The comments are right. We need a third launch provider in the US to fight ULA for scraps. ULA is never going to innovate if they always get half the launches from the government.

>>12531032
At least the plane is reusable.

>>12531104
Can't the bus be replaced by a Satellite as a Service mission from Momentus? They could even provide deorbit burn.

>>12531113
The flywheel and cable winch would need to be inside the part of the payload attached directly to the bus... but I think so! Pepe Shepherd would be the first astronaut to travel by microwave electrothermal water rocket, which is pretty cool.

>>12531110
That's true, if you use the same plane for about 50 launches the math compares favorably to Electron assuming the same payload capacity.

We missed out on scheduling a rocket launch on Midnight New Year’s.
Imagine counting down the New Year and a rocket launch at the same time.

>>12531120
>not deliberating filling the SN9 with explosives and launching the biggest firework ever

>>12531120
>night launch

fuck that nerd

Prayer circle that we reach 120+ launches this year. The last time we had that many was 1988... 33 years ago wtf.

>>12531088
>libertarian floating city.
>except with a spaceport
>2100 and the world is nomadic city states trading spacemetal for food and slaves with the battered mainland.

Now i understand why the Bezos ship is manned.

Fund secured for Mars missions :)

>>12531134
>nomadic city states trading spacemetal for food and slaves

I too liked Free Cities. Shame the developement stopped.

>CLF nigger who spamming his gains on unrelated stocktwits tags
Holy fucking shit dude just fucking stop

They do the SN-9 SF yet?

>>12531184
No

Welds on SN11 and 12 looking real clean

>>12531184
next week. Maybe Monday. Some are even saying the flight might be next week but I don't know about that.

>>12531074
Let’s go live on Titan it sounds cool

>>12531148
Isn't Bezos "only" like within 15 billion now? If SpaceX gets a new valuation due to Starlink/Starship, that's going to make him the richest. I suspect 2021 is the year Musk goes first and 2022 will be when he may leave others in dust due to runaway effect of Tesla opening 3 full factories going full production mode, Starlink being ready for mass market, Starship being ready, etc.

>>12530825
https://tfr.faa.gov/save_pages/detail_0_0024.html

>>12531224
Does it really take two years to figure out how to weld properly

>>12531237
>two whole months of TFR for static fires
???

>>12531240
it's just a blanket rule with a very low altitude. More or less: "don't buzz the 15 story rocket, moron."

>>12531078
How good would the telescope even be today? I’m actually curious because it’s been in construction for over 20 years and technology has come a long way especially for telescopes so would the thing actually be outdated at this stage and would it be better just to build a new one with better tech?

>>12531074
is terraforming mars even possible with its weaksauce magnetic filed?

>>12531078
Does nasa currently have their eyes on any particular rocket for launching it or does starship have a genuine chance as I know they have very good relations together.

>>12531247
my understanding is that rockets have to prove they're reliable before they're allowed to launch really important payloads. Trivial stuff at first and then increasingly important things as the rocket proves its reliability. Starship won't be sending up essential NASA projects at first

>>12531249
Which they then totally ignore when it comes to their own rockets

>>12531134
>Not building an arcology spire city fitted with massive nuclear powered engines and fitted with 4 sea dragon boosters
>Not launching your whole city into space, causing massive tsunami, and sticking the landing onto your colony site with your entire base ready to go
You lack imagination

>>12531249
I take it probably won’t fit on a falcon heavy? So who do you think they will go for instead?

Personally now that I think about it, spacex is better off avoiding this telescope as if anything goes wrong they would look so fucking bad, better let ULA have this one and if they fuck it up then spacex will get more contracts and more incentive to ramp up their starship efforts or if the launch goes well then we will have a nice telescope to get a better look at the universe and potential worlds.

>>12531263
>>12531247
>>12531263
JWT is launching on an aridane 5 last I saw