/sci/ - Science & Math

it's over
owari da
se acabo

never stop chasing your dreams

Glass the Earth, demigod war eventually

RD-170 based engine will forever by my favorite. Does anyone knows why Glushko can't make a kerolox full flow stage combustion engine? He can make one with a hypergolic fuel.

>>15998345
from the thumbnail I thought it was a warhammer figure, like Horus or something

VTHL

>>15998345
>Glushko can't make a kerolox full flow stage combustion engine?
because he's dead

>>15998345
>forever your favorite
well then forever stay in the past then
the future is all about clustering small engines
how many boosters of RD-170 do you need to achieve this: http://hydra.nat.uni-magdeburg.de/packing/cci/cci33.html

HTVL

>>15998365
You just need six.

>>15998383
*eight

>>15998335
>reusable SSME are still better.
PFFFFTTTHAHAHAHAHAHA.

>>15998345
hypergolics are vastly simpler since they spontaneously combust

Should dogs of cats be the primary pet for martians? There is a correct answer.

Quiz time
What does 'RS' and 'RL' stand for?

>>15998388
425 seconds @ 1MN is worth some ground crew time. RVac is the only better large upper stage engine.

>>15998399
cats
>eat less food
>weigh less and take up less space
>are content to stay indoors, including litterbox

keeping a dog inside of a small martian habitat would just be cruel.

>>15998399
Cats are more amenable to indoor life. Keeping a dog in small habs for life is cruelty. What are you going to do, put Fido in an EVA suit with a vacuum poop bag attached to his ass every time he needs to go outside?

>>15998402
rocket sugma, rocket ligma
I dunno

>>15998399
Guinea pigs and quails. Little space requirements, easy to feed and produce fresh protein instead of just consooming.
Where would you even walk your dog on a marsbase? And if you need a mouser, you did something very very wrong.

>>15998365
RD-172 (what was planned for Vulkan, and what RD-191 was derived from): 784 tons SL thrust in a 3.56m diameter circle = 78.76t/m2 (base RD-171 = 5% lower), that's between F9 (72t/m2) and Superheavy (99t/m2, considering nozzles stick out slightly from the 9m diameter)

For the time, it was good,

I agree the calculation change when you aim for reuse, but from the soviet's point of view, RD-171 was a clear improvement compared to the NK-15 and NK-33

>>15998417
Notice I said pet and not livestock you fucking nigger chimp

>>15998422
They double as pets. Having animals that are useful will have high priority with limited resources. You give names to the ones that you dont want to eat.
With the quails, you can even just eat the eggs.
Why are you so angry anyways? Did your toxoplasmosis tell you to bring cats to mars?

>The QI drive satellite has gone from 522km to 522.7km in just under an hour
Guys...

>>15998427
its apogee is around 525 or so

the IVO guy said they would switch it on between "1-8 weeks" so no joy

>>15998425
>MUH TOXOPLASMOSIS
Shit eating muttlover detected

>>15998427
>>15998431
lol. dude thought it changing altitude meant it was firing its "engine". orbits are ellipses bro

>>15998445
Never had dogs. Don't have a job for one and will not take care of it for no reason.
But what do you think is a good pet for a marsbase?

>>15998427
>QI drive
man spacex is raking in the cash Transporter fees from these retards aren't they?

>>15998406
however cats are obligate carnivores, you have to feed them meat
>>15998417
and you can feed them to the cats

welp

https://www.nasa.gov/earth/moon/shrinking-moon-causing-moonquakes-and-faults-near-lunar-south-pole/?linkId=295707833

>>15998427
it's happening

>>15998399
I feel like birds would be kino pets for low/0 g environments. They're already capable of 3d movement so they might adapt well. And seeing them hover with like half the wing flaprate they have on earth would be super trippy.
That's also why cats are objectively better space pets than dogs, they're way more vertical.

https://www.youtube.com/watch?v=gVf8KFYYYyc

Ive been getting back in to college so havent had time to track major Starbase movements since NYE, can anyone give me the Cliffs Notes on IFT-3 and Starship movements/happenings while I've been out?

>>15998403
What the fuck are you even on about?

>>15998537
IFT-3 2 weeks

https://youtu.be/sUnWdClK_7s

i shit my pabts

>>15998556
pabst poo ribbon

>>15998537
S28 just left the bay and B10 Got its hotstage ring
Flight is probably NET Mid February

https://twitter.com/GraviticsInc/status/1751312523972972636

> On January 5th, NASA announced that the agency will increase its investment in next generation space stations by $99.5 million, in another step towards Low Earth Orbit (LEO) commercialization. Blue Origin and Voyager Space, along with Axiom Space are NASA’s primary partners in developing commercially owned and operated space stations that will succeed the International Space Station (ISS) as early as 2030.
>Blue Origin will receive an additional $42 million, bringing the total award for Orbital Reef space station development to $172 million, while Voyager Space will receive an additional $57.5 million, bringing the total award for Starlab development to $217.5 million. With the adjustments to these contracts, NASA has introduced new technical milestones aimed at expediting development, mitigating risks, and enhancing NASA's understanding of station design and progress.

>>15998612
> NASA’s other funded commercial station partner is Axiom Space. Notably, Axiom’s architecture involves attaching their first modules to the ISS. In addition to the increase for Blue Origin and Voyager Space, NASA is negotiating additional content for Axiom’s contract.
>How does Gravitics fit into NASA’s Commercial LEO Development program? Gravitics is positioned to provide NASA’s partners and the rest of the industry with the most valuable next-generation space station modules. Gravitics is wholly focused on establishing the vital capability to manufacture, integrate, test, qualify, and deliver large space structures and components at a rapid pace.
>NASA has additional agreements that support commercial space destination efforts, including Sierra Space, Vast Space, Northrop Grumman and others. NASA's strategy aims to have commercial stations operational in the late 2020s and the agency’s continued investment in commercial space stations is a progressive advancement toward a thriving future of commercial destinations in Low Earth Orbit. #SpaceStationSaturday

>>15998614

>>15998616

>>15998337
SpX fags , justify this

Theyre gonna cancel the only program that could send us to the moon after 60 years. But thanks to starshit they gonna cancel all in 1 or 2 years

>almost febraury
>No IFT-3 news

Spacex bros... I dont feel good

>>15998626
In a hypothetical scenario where SpaceX is somehow a failure in every way here, there's still a Blue Origin lander contracted out.

>>15998627
two

>>15998337
>>15998617
>>15998626
>>15998628
>>15998612
When are we leaving this planet bros? Im tired of delays and im getting older... They promise us to go to mars and beyond.. whats taking so long...

>>15998626
I can play this game with Artemis II too

A. First launch of Orion and SLS with crew
B. First flight test of Orion ECLSS with crew
C. First human spaceflight launch from LC-39B since STS-116
D. First potential use of LC-39B Emergency Pad Abort baskets
E. First in space approach and maneuvers of Orion in proximity with another space vehicle (ICPS)
F. First operational use of the Orion Crew Survival System (OCSS) IVA suit.
G. First NASA crewed TLI burn in 50+ years
H. First woman sent to deep space
I. First use of Orion communications and O2O system between NASA and crew
J. First crewed flyby of the Moon in 50 years
K. First reentry of Orion with crew onboard
L. First test of newly revised heat shield
M. First test of Orion parachute deploy with crew
N. First test of Orion/NASA/US Navy recovery efforts and procedures

As you can see Artemis II includes a lot of "firsts" that the panel is concerned about, many of which must be demonstrated sequentially and prior to lift-off and many of which must be demonstrated upon reentry and will be first demonstrated on the first crewed mission of the first deep space capsule since the first one (Apollo CSM) 50 years ago which landed the first men on the Moon.

>>15998626
doesn't matter, its about the cost

>>15998626
>justify this goy
the alternatives were even more retarded, so…

>>15998641
>Artemis II: 1 launch
>Artemis III: At least 16 launches

Youre so fucking retarded

>>15998657
Several points in that list have nothing to do with the amount of launches retard, just trying to shove as many "firsts" as they can think up

SpaceBoat

>>15998399
Yes, but robotic ones only that do not take up valuable consumables. Or even just go full virtual tamagochi

Reminder that Dragonfly isnt going to the methane lakes and anything that increases the odds that it's cancelled is something to celebrate, including delays. Only trannies refute this.

https://twitter.com/rookisaacman/status/1751093210045128728

>>15998673
https://twitter.com/rookisaacman/status/1751285516312433144

>>15998675
https://twitter.com/rookisaacman/status/1751096384713859453

>>15998427
prime directive clause broken
prepare for ayy rape

>>15998677
Show the suit you bloody benchod

>>15998337
wikipedias photo of the day.

>>15998535
lots of houses being built

>>15998673
Pretty cool. Glad private parties are pushing safety envelopes that will be needed for advancement

>>15998626
Justify what?

https://twitter.com/Ringwatchers/status/1751332864367476964

https://twitter.com/VickiCocks15/status/1751387510276567550

https://twitter.com/StarshipGazer/status/1751240009196187662

https://twitter.com/markfencerepair/status/1751337982320083120
> My friend found a bunch of heat tiles that survived re-entry, in the Caribbean Islands @CSI_Starbase @elonmusk #spacex

/sfg/ - Spamming Faggot General

https://spie.org/photonics-west/presentation/Achieving-99-link-uptime-on-a-fleet-of-100G-space/12877-1#_=_

https://twitter.com/SpaceAbhi/status/1751386160914669602

sup guys its been awhile. You guys watch season 4?

>>15998725
Not real spaceflight gtfo /tv/tard

>>15998725
way better than season 3 at least
they'll never live down the fucking sea dragon throoster

>>15998635
Why leave this planet, my friends? I'm enjoying the delays, and I'm getting younger... They never mentioned Mars and beyond... What's the rush?

>>15998685
(pre-flight photo)

>>15998725
It's funny how North Korea somehow beat everyone to Mars

>>15998725
fuck off nigger

>>15998685
Knowing everyone died, this launch photo is fucking kino

>>15998756
>everyone died
You poor gullible child.

>>15998364
Pathetic! In America the dead can even become the administrator of NASA.

>>15998753
>nigger
I don't like those guys.

>china strong

>>15998673
Connected by an umbilical=Not an EVA

>>15998777
Umbilical EVAs count

>>15998725
FAMK is weird in season 3 and 4. They crack fusion torches, but then that tech doesn't go anywhere major. So the development of plot and technologies and mechanics arbitrarily stagnates. Its pretty dumb. Pretty based though that Black Elon Musk successfully stole an asteroid secured Mars' future permanently with not-Takeshi Kovacs.

>>15998777
EVAs don't count if you bring some of your atmosphere with you, that's cheating

>>15998784
The spacesuit is a vehicle, and an EVA is an EXTRA-vehicular activity.

I'm basically doing an EVA right now

>>15998363
hazegayart

>>15998788
Gesundheit

is there anything more contemptible than a journalist?

>>15998725
Buy an ad

https://spacenews.com/cygnus-ready-for-first-launch-on-falcon-9/

First time poster in one of these threads. Am I the only one who thinks space travel or involving humanity in any way with space outside of Faster Than Light travel is redundant? The sheer scale of the galaxy makes me think that if we physically can't construct a device to achieve FTL than we as a human species should just drop any spending or research into space colonization.

>>15998814
> SpaceX, though, did have to make changes to accommodate Cygnus, specifically its ability for “late load” of cargo within 24 hours of launch. The Antares has a “pop top” opening at the top of the rocket’s payload fairing, allowing access to the Cygnus inside for cargo loading after the spacecraft has been encapsulated.
>To provide a similar late load capability for Falcon 9 launches of Cygnus, SpaceX created what Bill Gerstenmaier, vice president of build and flight reliability at SpaceX, called a “gigadoor” in the fairing of the Falcon 9. That is a door 1.5 by 1.2 meters in the side of the fairing that can be opened to provide environmentally controlled access to the Cygnus inside.

>>15998817
plenty to do in this solar system before we need to think about colonizing other star systems

>>15998820
>>15998817
also a common mistake people seem to make is that technology just somehow appears out of thin air
it doesn't, people need to develop it and it doesn't get developed if there is no incentive to do so
going to space is going to incentivize developing better propulsion methods which will ultimately make propulsion better in space
you have to ride the technology cost curve down
without batteries in laptops, there would be no batteries in electric cars because it would be too expensive of a leap to go directly to electric cars

>>15998777
retard

>>15998817
Our solar system is absolutely colossal.

>>15998829
Fat nigger

https://europeanspaceflight.com/spanish-government-awards-e40-5m-loan-to-pld-space-for-miura-5/

https://www.cnbc.com/2024/01/27/three-space-companies-at-risk-of-running-out-of-cash.html
the names are Momentus, Astra and Sidus
Astra is still alive, just refuses to die

>>15998873
Two nobodies and the famous powersliders, not surprising
>>15998861
>>15998829
Get a room

>>15998427
>nothing ever happens
wake me when it's over 600
https://www.n2yo.com/?s=58338

>>15998873
The Astra stock chart is absolute hilarious, $331 down to $2. Shitcoin stuff.

>>15998817
You can cross the galaxy in a single human lifetime at slower than light velocities due to time dilation

>>15998337
From reports, it sounds like they're basically giving up, even if sunlight hits the panels... Why not fire the rockets and roll the dice. Maybe 5% it rights itself.

And all these articles on the mission are written for children. Basically having to explain first that the Moon isn't made out of cheese.

>>15998817
10% of light speed possible in the future, probably about the same time we'll have true AI. You could create a feet of unmanned AI ships with R2D2s for maintenance and frozen human embryos. Mommybot raises the kids after the ship lands on a planet after thousands of years. Just keep pumping them out until humans rule the galaxy - 100,000 years? Not too long in the scheme of things.

>>15998337
With 10 thrusters on the back and that dish nose and if that slope is true, it could be pivoted to lean down-slope then rocked with the thrusters to fall on its feet.

>>15998886
Keep in mind it never actually traded at 331, they had to do a 15 to 1 reverse split to avoid getting delisted last year and it's STILL under $3.

>>15998914
>launching human embryos into space
the religious types would fucking nuts if anyone actually tried that.

>>15998914
It would take 1,500 years to reach Kepler-452b traveling at 10% of light-speed. I

>>15999018
We're going to do it at some point with people fucking on Mars.

>>15998725
I have the first episode on pause and I can't help but laugh and also be indignant it starts with a whole sequence about some marriage difficulties.
Holy normie zero-calorie filler.

>>15998756
How do you know all the birds died? The explosion from the engines didn't go that far.
Do you know the natty lifespan of these birds?

>>15998817
You don't need FTL to settle anything within, say, a radius of 50 light years of Earth if you have tech that allows a significant fraction of light speed.
Not even talking about cryo tech and generation ships (not like dozens of generations, but imagine like two generations) here.

Within a sphere of 100ly there are hundreds to thousands of star systems.

>>15998777
>EVA
>Extra-Vehicular Activity
>Extra-Vehicular
>don't leave the vehicle
>stay inside strapped to your seat

https://abc13.com/spacex-could-swap-land-for-boca-chica-state-park-texas-parks-and-wildlife-commissioners-in-vote-proposal-tribune/14365579/

>While the sheer difference in land size makes the trade seem like a good deal for the state, environmental groups and community members urged caution. The Cameron County Judge opposed the swap. The Tribal Chair of the Esto'k Gna Tribal Nation of Texas said such a trade would compound a history of his community being erased or ignored.

>"It doesn't make any sense at all for them to do what they're doing in transferring that land," Juan Mancias, the tribal chair, said. "None at all."

>Wildlife advocates and residents over the past decade have expressed concerns about SpaceX's decision to build its launch area near protected state and federal land in South Texas. They worried about potential harm to endangered and threatened species such as ocelots, Piping Plover birds and Kemp's Ridley sea turtles.

>Emma Guevara, who grew up in Brownsville and is now a field organizer for the Sierra Club, said SpaceX changed the community. A company people hoped would bring good jobs instead brought contract and custodial work for them and higher-paying work for outsiders who moved in, she said.

>>15998965
the stock price isn't the only thing that's garbage

>"It's a little sneaky, because it seems good because it's so much more land being traded," Guevara said. "But the land that's being traded is incredibly important to the community ... so there's a lot of community opposition to this. There's a lot of community opposition to SpaceX in general."

>SpaceX did not respond to an emailed request for comment.

>>15999126
what the fuck

>>15998402
>>15998415
RS = Rocketdyne Standard
RL = Rocketdyne Liquid

>>15999126
>incredibly important to the community
>Literally empty lots claimed by the department that are filled with shitty grass and no wildlife
Fuck these guys.

>>15998914
a few percent is possible right now with a nuclear powered lightbulb engine. The reaction mass is literally photons and they travel at the speed of light. The only problem thrust is low

>>15999112
From a topological point of view, as soon as you open a vent to the outside, the inside ceases to be inside.

>>15999156
It's the same bullshit as with the "muh untouched pristine lunar moonscape" faggots, they contribute nothing to society, and just get their jollies by controlling what other people do.

>>15999167
An open door is still a door.

>>15999171
that door is merely ajar

>>15998626
>justify this
there really is no justifying it. a full stack holds 1200 tons of fuel. starship carries 150 tons to orbit, so the actual number of launches should be 8. Future starships are going to aim for 200 tons to orbit, which will make it 6 launches. If they stretch starship that could take the cargo to orbit up to 250-300 tons, which would reduce the number of flights needed to 5 or 4 respectively

for it to require 16 starship flights to fuel a starship, it would have to be pulling half of it's payload capacity, 75 tons. there's no reason that they should put such little transfer fuel on board

>>15999168
Actual, literal embodiment of the guys Ayn Rand was complaining about in Atlas Shrugged.

>>15998626
So what’s the final call? Why didn't NASA go with even a partially reusable SLS rocket? Why did they choose to go the “oldspace” route?
Because expendable is not out of date. It completely depends on what the objective in the program is.
For SLS, its accessing high energy orbital planes and beyond with only one launch. It accomplishes that by eliminating the need for heavy heat shields, spare fuel, or guidance computers that would just be dead weight required for it to survive reentry. Every spare ounce of weight was put into getting as much payload as possible in one launch.

>>15999194
If payload maximization was an actual goal they would never, ever have used a sustainer.

>>15999194
They were required by law to use solids and hydrogen. They wanted a 3sto Saturn clone.

>>15999195
Pyrios booster cancellation was basically an admission that they couldn't do RP-1 engines like the Soviets.
Remember the F-1A and F-1B are not exactly the same as the Rocketdyne F-1, they're actually closer to a clean sheet design - and they weren't very good despite solving the combustion instability problem...
This basically meant that they had to stick with the Space Shuttle solids.
The other candidate they had in mind was... a Delta IV Heavy with 7 cores.
So yeah, out of a clusterfuck of choices SLS was indeed the best option.

>>15999201
>SLS was indeed the best option.
It was the best option when you make a retarded decision to build expendable SHLLV, which we don't need to go to the Moon.

>>15999201
The evidence points towards SLS' questionable decisions being overwhelmingly political, rather than technical in nature.

>>15998635
China is the only country that might achieve a permanent human base on the moon or Mars. The US is too wish washy to get anything done. Over the next few hundred years virtually all space settlements will be privately funded.

>>15999201
>>15999194
oh NO NO NO NO NO
Why didn't they listen to George?

>>15999224
The problem is the SLS and Starship are real rockets. China is still in the early stages of development in its super heavy lift program. I've been following it quite closely via a chinese guy on NSF (native chicken) and he says they are basically nowhere near even doing static fire tests.

Is this even possible?

>>15999234
Technically sure, but the precise viable size and shape is an unknown: Falcon Heavy has an unknown center core mass margin past ~150 tons.

>>15999187
Starshit could not even reach orbit and youre talking about v2 and v3? LMAO what year is this gonna happen? 2037?

>>15999194
SLS is a product of comical amounts of corruption
full on late-stage soviet empire shit
Were it not for SpaceX, that shit would have kept embezzling money with no substance for at least another decade

>>15999230
The LM-10 will be flying by 2027 and other chinese private rocket companies Falcon heavy clones will also be flying by then. Comparing this kind of shit via this short term time scale is retarded btw. Need I remind you that America and Russia both had a 50 year head start in human spaceflight compared to China and pissed it all away?

The most important thing other then technology is a consistent plan. All the Starships in the world won't do shit if Congress flip flops on funding every 4 years and can't decide on a permanent moon base vs a Mars landing, or does retarded shit like debate endlessly on where exactly to place their moon base for years without a concrete plan. America would have already re-landed on the Moon 10 years ago if they didn't keep changing their plans with every new president.

Literally the only reason why Artemis was proposed and hasn't been drastically changed or cancelled is because of China's crewed landing program

>>15998422
Any pets on a colony would also double up as food when they eventually die

>>15998612
>>Blue Origin will receive an additional $42 million, bringing the total award for Orbital Reef space station development to $172 million

For a company that has never been to orbit, what the actual fuck?

>>15998777
Retard

>>15998673
This faggot, I literally can't even. THEY ALREADY RELEASED A CGI RENDER OF THE NEW SUIT
IT LOOKS JUST AS SHITTY AS THE OLD SUIT

>>15999126
Best part about this webm is the random Elons walking by

>>15999313
>For a company that has never been to orbit
Reminder that they got an equal-attention HLS contract because they cried really really hard about not getting picked the first time.

>>15999126
At least those types are heavily vaxxed

>>15999194
>partially reusable SLS rocket
Hahaha hahaha

>>15999321
Fucking ridiculous

>>15998817
We can colonize the galaxy at conventional speeds. No one likes generational ships but they are more comfortable than earth that's too close to the sun. Also colonizing mars teaches lessons. Imagine if warp drive were invented but we don't even know how to space because it was deemed redundant

>>15999321
>elon musk
>known scammer
>trumpian
vs
>jeff bezos
>votes democrat
>good person

>>15999332
why does it have to be "generation" ships? just solve cryofreezing lol. or let the hypersentient teslabots go

>>15999330
Welcome to corruption, legitimately
Pay key figures a couple million in bribes, since bribery is legal in the US if you're indirect about it, and you can get an order of magnitude or more back in taxpayer dollars
If you think that's bad, the fuck fuck games of the five pointed puzzle palace will give you a conniption

>>15999334
>Elon musk
>SpaceX launches nearly every 3 days
>cheapest ride to orbit ever

Vs

>Jeff Who
>can't get it up (to orbit)
>overpriced rocket that's never flown

>>15999340
Welcome to the club!

>>15999334

>>15999339
>If you think that's bad, the fuck fuck games of the five pointed puzzle palace will give you a conniption

I try not to think about them. Not to show my powerlevel, but I'm pretty close to the small hat clan, and any criticism would lower my and my families life expectancies

ARE WE GONNA WIN TODAYYYYY????

>>15999357
What's happening today?

>>15999358
Starship IFT-3

do rotating detonation engines open up the possibility of safely using extremely explosive fuel that normally would have scientists afraid of detonating it

like that hydrofluorohexamethylbromazine shit

>>15999360
As in its announcement?

>>15999365
>hydrofluorohexamethylbromazine

>>15999365
im still scared of it

>>15999365
No. Also, most of the problem isn't in the fact that the fuel is absurdly explosive; it's the toxic chemical residue it'll leave all over everything after ii gets done exploding. This is still a problem if it explodes normally to produce thrust.

https://www.youtube.com/watch?v=btxm0NhaNT0

Today, a sad episode of Mars Guy

>>15999376

VGH

>still no rotating station

>>15999381
https://youtu.be/snB8u_G3jVI?t=84

>>15999379
i really hate the way this guy talks

Near-Earth Asteroid 2024 BJ
VERY close encounter with the Earth
g-guys?!

>>15998399
Birds

>>15999383
Ares I was underrated

>>15999391
you're kidding right? RIGHT??

>>15999391
please hit please hit please hit

>>15999391
>2024 BJ
I wish

>>15999391
This is insane, just looked it up. Why isnt Neil DaGrasse Tyson tweeting about this?

>>15998626
15 flights of a vehicle is fine and minimal risk.

>>15999401
He's too busy covering up his rapes and tweeting about kissing himself on the lips in a mirror

>15999405
t. fucking idiot who cant into rocketry

>>15999405
I guess it's difficult for SLS apologists to imagine more than 1 launch per year

>>15999194
1. Mass produce it. Cost goes down with economies of scale (Deep Space Transport LLC)
2. ICPS needs to go. J-2X EUS with ACES tech or nothing. Centaur/ICPS could be the third stage.
3. RS-25s need to go. Rocketdyne still has those RD-0120s (aka expendable SSMEs) in storage?
4. Replace SRBs w/ Castor 1200s.
SLS fills a niche in the launch market no other rocket can.
SLS has a clear advantage in the high energy orbital plane due to its insane efficiency using hydrolox, coupled with safety and precision.
We must keep flying SLS if we are to earn back what we invested.
Starship, frankly, does not compete with SLS for the applications they are built for.
Does Starship get higher to LEO? Yes, but they're not built to go to LEO.
SLS wins out by having an incredible efficiency, 366 sec at launch, 452 in space, and 468 in S2.
Starship? 330 at launch and (a goal of) 380 in space.
For an idea of how badly this affects a rocket, have a look at this graph provided by NASA LSP comparing Delta IV Heavy to Falcon Heavy.
Remember that FH launches significantly more to LEO than DIVH.
12 is the energy to get to Mars, 80 is to Jupiter. Saturn and Uranus need ~147 direct, and Parker Solar Probe needed 108.
Even Atlas V 551 beats Falcon Heavy to Mars.
While Expendable FH beats Delta IVH most of the way - based on extrapolation, DIVH wins for outer solar system.
SLS can do 10 Parker Solar Probes.

>>15999411
delusional

>>15999411

>>15999411
>>15999408

>>15999411
Boeing is amazing company

>>15999415
Kek

>>15999395
Most American rocket since the Saturn V, and before Falcon 9.

>>15999417
isnt that just a shuttle srb in cosplay

it's no Liberty or OmegA

>>15999420
rumor is omegA might be coming back....stay tuned.....

>>15999421
it's dead
I killed it

>>15999419
Extended Shuttle SRB, adapted shuttle external tank.
It was fucking beautiful

>>15999422
youre a fucking liar is what you are

>>15999417
pfft

>>15999424
I'm sorry you had to learn it this way, anon

>>15999420
SOVL

>>15999425

>>15999427
there's nothing more American than accepting gifts from the French

Why doesnt someone make a rocket called Freedom or Constitution? Endeavor?

>>15999405
Correct.

>>15999411
>Mass produce it
A good thought, but SLS isn't designed for that, probably intentionally

>ICPS/EUS
DCSS-5 is fine if you use it as a third stage, and not just because it'd be easy to replace with a Centaur V as an upgrade. The real issue is how heavy and poorly designed the SLS core is. It should be two stages instead of one.

>RD-0120s
The RS-25E is fine for everything except price. Instead of handing some no competition contract to AJR there should have been a main engine competition and Blue Origin should have submitted a SSME equivilant bid. They probably wouldn't have won, but it would have been good leverage to keep aerojet honest. Suggesting using Russia engines that haven't been produced since the late eighties is dumb and you should feel dumb.

>We must keep flying SLS if we are to earn back what we invested.
Sunk cost fallacy. "We must keep providing Boeing with corporate welfare to justify all of the previous corporate welfare" is not a good argument.

>SLS wins out by having an incredible efficiency
One launch per year for $4.5 billion is not efficient. Focus on building the rocket factory as much as the rocket.

>Falcon Heavy/Delta IV Heavy
Delta IV was so cost inefficient not even ULA wanted to keep it around. Falcon Heavy has become the de facto launcher for all NASA outer planets missions.

>>15999426
just dont talk to me

>>15999337
doesn't have to be, but it helps to convince normies that actually we can do it with almost no new tech, compared to telling them we'll probably colonize the universe with a first wave of copied human minds running on computer hardware that arrive in a new star system and use nanofactories to bootstrap the beginnings of a dyson swarm of orbitals that for biological humans to live inside after being grown from printed zygote cells, or whatever.

Guys— Holy SH@%$*T!

>>15999194
>Every spare ounce of weight was put into getting as much payload as possible in one launch
>handicaps performance with SRB instead of LRB

>>15998399
Every Martian child will raise a guinea pig. They will care for it and love it. They then must kill and eat it so that when the time comes to glass the earthers, they will not balk.

>>15999441
Shuttle is to spaceflight what carcinization is to sealife.

>>15999441
The stringers on the outside of a Shuttle external tank are unpressurized inter-tank supports for the LOX tank (top) and the LH2 tank (bottom). The stringers on Ship 26 are for the unpressurized payload bay section.

>>15999441
It's funny. Nobody has the slightest idea what they are doing with S26.

>>15999445
It's almost as if SLS sucks because it was the best they could do with a bunch of shitty hamstringing design limitations imposed by politics

>>15999411
>SLS has a clear advantage in the high energy orbital plane due to its insane efficiency using hydrolox

And then the other rocket refuels in LEO.

>>15999441
my god..

>>15999455
SLS will have those features too
> J-2X EUS with ACES tech or nothing.

>>15999455
Or launches with a reasonably sized kick stage

>>15999448
Incorrect. The stringers reveal SN26 is almost certainly a tanker test
>>15999451
Tanker test

>>15999457
What a waste

>>15999451
The external stringers on S26 just happen to be exactly where the HLS's landing engines would go.

>>15999379
that's a muffin

>>15999457
Why not fill these with water so we can have water in space?

>>15999457
Are inflatable fuel depots even possible,,,?

>>15999461
>Incorrect. The stringers reveal SN26 is almost certainly a tanker test

Bit of a reach there, since there's no evidence the upper bulkhead above the methane tank is plumbed into anything.

>>15999464
Now this, THIS is delusional

>>15999441
delete this heresy

>>15999466
You have to get the water into space first

Every problem was solved in the 20th century.

If we flew the Saturn program instead of the Space shuttle we likely would've figured out reuse, nuclear propulsion and have a US colony on Mars already.
Michael Griffin, former NASA administrator

>>15999379
>mortally wounded but not dead
The helicipter has a tiny fracture in one blade, it can fly fine. JPL needed it to die to cut back on staff and force Nasa to build the next copter for MSR. They did this with Spirit/Opprtunity. They killed them on purpose

>>15999477
so fuel depots work but water depots dont? huh

>>15999483
You already use fuel to get into space, so carrying extra isn't too much of a problem.

>>15999479
Mike Griffin is the snake to end all snakes

>>15999487
Mike is supremely based. SpaceX wouldn't exist if not for him.

>>15999482
At least 2 tips are fractured, one on each blade. Likely all 4 tips are busted.

I'd like to see them attempt very small hops. It won't be stable, but it would stir up dust grains around the craft for inspection.

>>15999490
He was against CLPS and expected it to fail. He has advocated against fixed price contracts even today. Spacex succeeded despite him

>>15999493
*COTS lol

>>15999491
They should use the rotors as grasshopper legs! Hop hop hop!!!!! ^_^

>>15999493
>expected it to fail
And he was right.

>>15999498
It's a good thing he was fired and Constellation cancelled

Cancel Dragonfly. Not visiting the lakes, just sucks up funding like MSR to be indefinetly delayed and pay for the lazy fucks paid vacations.

Why has it taken SpaceX 10 years to develop really shitty space suits?

>>15999493
Elon Musk evidently doesn't agree with you, he named one of his sons after Mike (Griffin Musk)

>>15999310
Then they better be tasty. Carnivore meat isn't as tasty as herbivore meat.

>>15999511
Musk named his sons after mythical creatures

Coast to coast Starlink launches tonight. We are so back.

>>15999365
Rotating detonation engines open up many possibilities some consider to be... unnatural.

>>15999320
>black elon
lel

>>15999509
>really shitty space suits
Any evidence of this, or do you just not like how they look?

>>15999504
Cancel Artemis, especially camcel HLS Starship
Ressurect Constelation, build Jupiter
cancel Msr and Dragonfly
camcel uranus mission
Fund ISS through 2050
build ARes
Build Altair
Cancel Spacex dragon
make starliner cost plus

>>15999376
Did you know that some rocket engines have dihydrogen monoxide as a chemical residue? That stuff can kill you!

>>15999532
Fuck off back to r*ddit with that meme

>>15999523
By all astronaut accounts, there is no worse IVA suit than SpaceX suit. And yet they look awful on top of all that

>>15999539
You must be fun at parties haha. Jeez!

>>15999546
Replying with another meme... Do you have any original thoughts?

>>15999411
>>15999415
>>15999391

>>15999551
Maybe stop reposting my memes every thread? You're the unoriginal one

What do you mean i could of change the world?
I don't get it

>>15999563
Please go back

>>15999530
>Cancel dragonfly
Faggot catch me outside

>>15999441
I raffed

Do you guys think Elon reads /sfg/?

>>15999581
Probably not, we're kind of a terrible waste of time in most respects.

>>15999569
i'll let you in on a little secret: sand dunes on titan are just as useless and boring and made of sand as they are on earth. there, saved you 50 billion and 40 years

>>15999581
Yes, but he has an intern collect the lulziest posts for him

>>15999585
I said it already in other /sfg/ posts: if Titan was anything like Pandora from Avatar, we'd be there already and not just with a probe.

>>15999581
Who? Answer in 1 word or less

>>15999585
>>15999589
None of you will stop me from having my silicon based life dog pet while i fly mountain to mountain with just some cardboard wings, titán Is literally the best shit we can get to

>>15999581
SpaceX probably runs a scraper on /sfg/ other space forums the same way the glowies have a copy of Twitter/Reddit/Wikipedia.
They can then filter using keyword selectors and other methods.
Good way to generate new ideas.

>>15999589
it's weird people think life is there. it's literally frozen solid, with like a handful of shallow methane puddles that dry up constantly
>>15999598
Silicon is a gay element and it's been proven so objectively

>>15999599
do you think they key onto /sfg/ or "spaceflight general"
I bet that's why there's so much autistic screeching whenever you spell it different

>>15999589
I watched avatar 2 and got hard when this showed up

>>15999599
>Good way to generate new ideas.
Have you seen the kind of new ideas 4ASS has been autistic about in the past? I'm sure they'll appreciate being able to chinese themselves the genius of the pisslock.

>>15999538
Quote one of these astronauts.

>>15999613
No

>>15999617
'irno at the 'hica

Happy birthday Challenger disaster!

>>15999608
the discussions themselves aren't that important but it's always good to have a database/intranet you can use to map different idea nodes
I hear Nvidia research arm has something similar but for microelectronics

>>15999642
Ouch

I hear the Europa lander is back under consideration

>>15999659
John Culberson will be the next Nasa administrator

>>15999659
all these worlds are yours except europa. attempt no landing there.

https://youtu.be/-RTF26JIG88?si=ldN6CbkJKzA4FgBz
really cute girl interviews /ourguy/ "coomer" Casey "handy" handmer

>>15999226
Boeing strikes again
I wonder how much shelby was getting bribed by them

>>15999411
It wont go down because the nanagment and companies contracting are extremely incompetent

>>15999685
He didn't need to get bribed directly, all he needed to see was SLS = MOAR ALABAMA JOBS.

>>15999732
Reddit meme gtfo troon

>>15999732

How did she know?

anyone else thinkin bout slippin their cock in stoke bunny?

>>15999732
"How would history be different if Big Bird had died on Challenger" isn't a question I ever expected to ask myself.

>>15999732
hahahaha KEKLE

>>15999670
that bitch is hot. shame she 'runs' a scam institution. I bet casey was wacking his boner immediately asfter the interview

>>15999756
how is it a scam lol

>>15999759
muh anti aging. If people call musk a scammer for promising fsd which he has no realistic chance of delivering, then theya re defintiely scammers. She needs to be hate fucked as a punishment.

https://twitter.com/NASASpaceflight/status/1751696872094179635

NSF interview with Tom Meuiler. Live

>>15999764
I volunteer as punishment administerator. Not proud of it but I will do my job (with my pebis)

>>15999767
mueller keeps snubbing everydayastronaut keeek

>>15999365
Doesn't matter if you use a rotating detonation engine if your fuel is so reactionary that it will react to the finger prints inside the tank.

“If you're offered a seat on a rocket ship, don't ask what seat. Just get on." - Christa McAuliffe

https://www.youtube.com/watch?v=iPNqt87SmT4

https://x.com/VickiCocks15/status/1751688647575765343
>Couplers are being added to join the third row of stringers to the second. The amount of time and care that's going in to this job, S26 must have a very important job ahead of her.

>>15999778

The Starship charade, starcharade as I've come to call it, is almost over

>>15999428
>we were denied this kino

>>15999767
talking about the benefits of cryogenic methane over rp-1, basically better in every way except volume

>>15999428
What is the orange tank? Is that hydrogen for the core stage or just LOX?

>>15999784
it's very silly because cryogenic propane gets you benefits over RP-1 in every single way, including volume

>>15999784
hearing him say that, he doesn't sound very smart lol

>>15999747
I am now

>>15999785
LOx for the boosters, there were proposals to use LH2 for the boosters but those people were shot for attempting to defraud the motherland

>>15999119
>Sierra Club
Of course that scum is behind this.

>>15999786
but probably has worse ISP than methane? and further away in temperature when cryogenic

>>15999792
it freezes below the temperature that oxygen boils, they can share a bulkhead with zero insulation

>Broadly accepted physics says that you can produce thrust without ejecting propellant, using a “photon” drive. For instance a flashlight produces a bit of thrust. The reason NASA/SpaceX/etc. have never created a photon drive is that it takes an enormous amount of energy to produce a small amount of thrust. IVO claims their drive can produce 52 millinewtons with one watt. Standard physics says that a 52 millinewton photon drive would require – 15 megawatts.
Reply

bruh is this true, a fucking flashlight thruster?

>>15999796
the wider that band is, the easier it is to engineer

>>15999798
if it wasn't then solar sails wouldn't work

>>15999798
yes its basic physics lol

>>15999801
solar sails work by photon pressure on a reflective surface

>>15999425
>>15999428
>>15999783
A friendly reminder that F-1B engine development never went past the concept stage.

The AR-1 would have been the only engine option for a kerolox LRB.

>>15999767

>>15999803
and where does that pressure come from? you have photons imparting momentum as they are bouncing away

>>15999119
>A company people hoped would bring good jobs instead brought contract and custodial work for them and higher-paying work for outsiders who moved in, she said.
More like a rural nowhere had nobody worth paying a lot of money for. What, you should get paid more just because you happened to be there?

We already talked about solar sails and beams being the only way for interestelar travel

>>15999806
https://www.impulsespace.com/mira

>>15999800
it freezes below the temperature that methane does
some sort of steric thing with it getting aligned or something idk, it's easier for methane to form its crystal structure vs propane which is long

>>15999803
Couldnt you just use the flashlight and shine it on a solar sail if the flashlight alone dosent produce thrust?

>>15999803
photon sources produce the same photon pressure, action/reaction and all that

>>15999819
oh lol

>>15999824
anyway here's the two cons to propane, or why nobody has tried to use it yet:
A. slightly lower ISP than methane
B. the incessant Hank Hill memes are insufferable

>>15999821
wouldn't it be half

>>15999830
if your sail is reflective it gets the same pressure twice, yeah

>>15998817
You could comfortably house a trillion people in O'Neil cylinders just by deconstructing like 1% of the asteroid belt. Interstellar colonization is a fun concept but there's very little real need for it.

>>15999828
it sounds like its just the poor mans methane

>>15999828
C. Might cause engine fouling

>>15999834
not an issue

>>15999828
D) more difficult to ISRU on mars

E) more expensive

Mueller thinks RDE might be promising due to not needing turboumps, but aerospikes are shit due to having to cool such an large area and you lose on combustion efficiency about as much as you gain theoretically

launching un-run nuclear fission engines is probably safer than launching RTGs with plutonium (that are already being launched) t: mueller

I hate horizontal takeoff orbital vehicles so much.
The whole idea of horizontal flight in a vehicle with enough propellant to achieve orbital velocity is so stupid.

NASP had to achieve Mach 25 on scramjets in order to make any kind of sense (no this wasn't feasible).
And it would still probably be the most complex and expensive aircraft in history and deliver like 5 tons to orbit.

Just incredible what people will look over to have a cool space plane or 'airport operations', this shit makes the X-33 look extremely reasonable.

>>15999862
VTHL is gangster if you're willing to pay for it
somebody will do it eventually if our space future goes the way I think it will

>>15999873
>gangster
gtfo you dont belong here redditnigger

For those that watch the cup, /sci/ is playing /y/ today shortly >>15999854

SLIM not so shady

https://twitter.com/Scobleizer/status/1751374398425374878

>>15999945
https://twitter.com/elonmusk/status/1751625692410761386

>>15999950
I wonder what real scientists think of these billionaire clowns

When?
https://www.youtube.com/watch?v=DIgw2dv_Aig

>>15999961
>"We were about to spend years and millions of dollars of supersonic retropropulsion studies, but then Elon just went and did it! How totally selfish!"

>>15999961
>muh pristine night sky
>muh astronomy
>muh radio interference
>muh colonialism
>muh planetary protection
>reeeeeeee

>>15999873
Vthl is fine although honestly if a vertical landing is possible you might as well, little benefit anymore to horizontal landing; even if you want an orbiter with high cross range it's still better to land vertically to ease re-integration and to simplify landing legs, only downside is requiring a restartable/throttle able engine.

SpaceX will succeed

>>15999798
Yes.

Shuttle>Starship

>>15999984
VTHL is a lot like hydrogen first stages. It's not the most attractive overall, but if you've already got a lot of investment into the prerequisites it can be more economical than pursuing something like VTVL from scratch.

>>15998337
what am I looking at

>>15998532
if anything I'd like to see something like cats adapt to low g. Imagine how agile they could be.

>>16000000
>>15999999
Reeeee we didn't get it

>>15999798
>For instance a flashlight produces a bit of thrust
such an engine could produce extremely high dV if powered by a nuclear source. Much higher than nuclear powered ion thruster.

>>16000015
But which would produce best thrust, high intensity LED?

>>15998532
No birds get glitched as fuck
>>16000011
Cats just think they are falling and constanly twich in 0g
No way any animal Will adapt to 0g

>>16000016
I don't think there would be me much difference between a LED and a lightbulb, as long as a parabloic mirror reflects all the light and infrared light in one direction.

Russians did this

>>16000033
I'm just glad shit popped off before they sent the rover, they'd never get it back

>build functioning rover
>can't send it to Mars in the next 7 years

https://interestingengineering.com/innovation/radiant-could-provide-safe-portable-nuclear-energy-within-the-next-5-years

Packaged nuclear for mars.

>>16000017
>No way any animal Will adapt to 0g
What about crows? They're smart enough to figure it out. I see them flying pretty well in high winds when all the other birds are getting bodyslammed into the ground.

>>16000055
all creatures will adapt to zero g in time

>>16000033
>>16000035
nah. if it had already launched it would be on the surface doing science right now. Like how both sides still work on the ISS there would be no other option.

https://twitter.com/SLIM_JAXA/status/1751742976253190226

SLIM lives
Here's a new pic it took yesterday

>>15999994
In terms of people killed, yes.

>>15999994
Japanese space elevator > Starship > Saturn > Shuttle

>>16000011

>>16000017
From what I've seen, mice/rats handle it pretty well. One behavior they do is to run real fast around the walls of the cage to generate centrifugal force, sort of like a hamster wheel without that can't turn.

>>16000112
would be funny if this actually worked but then that it couldn't compete with the long-run cost of simply launching a lot of Starships
that magic cable would need to be built and maintained, so there is a minimal cost just from that even if energy was free (it isn't and if it was free you could create methane from the atmosphere on earth too)

>>15998668
It's all fun and games until the junkie crewmember who got there because the commander felt he owed his late father crushes the robot dog because he felt annoyed by it.

https://www.youtube.com/watch?v=AtoSYEwgEsw
Starlink 6-38 happening in an hour, baring any further holds or delays

>>16000140
Something it seems nobody ever talks about is how many rides can you put on the magic elevator at the same time? I've heard it could take days to reach GEO, what good is all that effort if you can only have a couple of tons go up per week?

>>16000184
Let me know if Clear goes live.

>>15998337
Does nuclear rocket propulsion have any real world military applications or am I just being schizo about NASA being used as a cover up to develop military technologies?

>>16000112
>>16000140
>>16000185
Also, wouldn't the top part of that thing be going crazy fast, like the speed of the ISS or sth - how does that even work when its connected all the way to the ground?

>>15998641
You missed that it's the first test of almost all of the life support systems on Orion, since they weren't even installed for Artemis 1.

>>16000184
>strong wind warning, 75% favorable weather
fuck

>>15999365
Not a chance, the point of an RDE is to manage the detonation waves to improve performance, it has nothing to with fuel.

Imagine trying to pump Aziroazide azide or chlorine trifluoride at 50 bar. Let alone having hundred of tons of the stuff in cryo without it exploding or catching fire because it touched something.

SpaceX won't even do a bare-minimum X live broadcasts of starlink launches anymore.

>>16000270
well their viewship cratered anyway

byutefool

>>16000205
It's useful for cislunar combat ops since it increases delta-V and you can tap the reactor for electricity for sensors, comms, and laser weapons.

https://twitter.com/SpaceX/status/1751775097642459305

>>16000270
what do you mean? there is a livestream
https://twitter.com/i/broadcasts/1YqKDglyOeYxV

>>16000206
>wouldn't the top part of that thing be going crazy fast
Counterweights above geo-stationary orbits fixes that

didnt see shit from phx

>>16000290
>laser weapons
Near future space warfare is going to either be BVR stealth missiles or ironclads broadsiding each other with lasers and expendable slaved drones.

>>16000218
Yep, arguably a major big first
>B. First flight test of Orion ECLSS with crew

>>16000278
gee I wonder why, its almost like more people watch livestreams on youtube than twitter

Nooglin

SOON...

昨晩SLIMとの通信を確立することに成功し、運用を再開しました!
早速MBCの科学観測を開始し、無事、10バンド観測のファーストライトまで取得しております。
下の図はマルチバンド観測のファーストライトにてトイプードルを観測したものです。
Translated from Japanese by

https://twitter.com/elonmusk/status/1751796560357097692

he can't keep getting away with it

Translated from Japanese by

>>16000362

>>16000385
Fixed that for you

>>15999984
eventually some businessman is going to want it and will pay for it
>>16000002
the gentler landing is a plus but not worth paying for generally

Schizodrive status?

>>16000427
mum's the word.

>>16000427
two weeks

>>16000427
any second now

>>16000427
Stalling until it decays naturally so they can continue the grift.