Spaceflight 🚀
Spaceflight 🚀  ·  6 hours ago

Content Warning

@nyrath you should better also inform them : "Liquid hydrogen is #NASA’s preferred rocket #fuel, and the new tank, together with the old one, will give the agency the capacity not only to accommodate the larger #fuel requirements of its new #SLS ... a lot of hydrogen is lost as it’s transferred from the rocket #fuel tank back to storage" https://spinoff.nasa.gov/NASA_Hydrogen_History_Informs_World%E2%80%99s_Hydrogen_Future

I suggest it's [2] 😁

Spaceflight 🚀
Spaceflight 🚀  ·  11 hours ago

Content Warning

To get enough fuel ⛽ into #orbit for a #Mars 🔴 mission would require at least 10 launches of the #SLS rocket, or about $20 billion 💰. Just for the fuel. To use traditional propulsion, one needs to push the boundaries of #reuse ♻️ and heavy lift rockets to extreme limits—which is precisely what #SpaceX is trying to do with its fully reusable launch system https://arstechnica.com/science/2021/02/report-nasas-only-realistic-path-for-humans-on-mars-is-nuclear-propulsion

#SpacecraftPropulsion #reusability#LaunchCost

Spaceflight 🚀
Spaceflight 🚀  ·  last year

Content Warning

#NASA’s Office of Inspector General issued a devastating 👎 audit 🔍 of the program, which found that delays to the #SLS booster and engine contracts have resulted in an approximately $6 billion 💰💰💰💰💰💰 cost-overrun. The report further criticizes the use of #CostPlus contracts, a fee structure by which essentially all of the risk is taken on by the government. https://techcrunch.com/2023/07/13/congress-prepares-to-continue-throwing-money-at-nasas-space-launch-system/
Spaceflight 🚀
Spaceflight 🚀  ·  last year

Content Warning

The #SLS and #Orion spacecraft projects are of such a scale that they spend money in all 50 states and Puerto Rico, creating #parochial interest in nearly every congressional district. It sounds like a straightforward argument: cancel the slow and outdated SLS and direct its $2.6 billion 💰 per year into novel public-private partnerships like #SpaceX’s #Starshiphttps://www.planetary.org/articles/why-we-have-the-sls
Spaceflight 🚀
Spaceflight 🚀  ·  10 months ago

Content Warning

#Presidents support #NASA and do what NASA says. We could have orbiters around every planet 🪐 in the #SolarSystem for a fraction 📊 of the cost of #Artemis. But nobody gave us that option. The cost 💰 and time ⏳ spent on #SLS and #Orion have set the #SpaceProgram back 〽️ https://www.nytimes.com/2022/11/14/opinion/nasa-moon-artemis.html

@lori_garver

Spaceflight 🚀
Spaceflight 🚀  ·  6 months ago

Content Warning

#Boeing is exploring a sale of #Starliner, but excludes the unit building #NASA's #SLS. The company's new #CEO said he wants Boeing "doing less and doing it better" https://www.reuters.com/business/aerospace-defense/boeing-explores-sale-its-space-business-wsj-reports-2024-10-25/
Spaceflight 🚀
Spaceflight 🚀  ·  5 months ago
It is not easy to turn a big #bureaucracy, and there will undoubtedly be friction and pain points. But the opportunity here is enticing: #NASA should not be competing with things that private industry is already doing better, such as launching big rockets. Rather, it should find difficult research and development projects at the edge of the possible. https://arstechnica.com/space/2024/12/how-did-the-ceo-of-an-online-payments-firm-become-the-nominee-to-lead-nasa

#SLS#Artemis

Spaceflight 🚀
Spaceflight 🚀  ·  4 months ago

Content Warning

The incoming Trump administration will certainly keep #NASA's goal of landing people on the Moon, but without the budgetary 💰 burden of the #SLS rocket. https://arstechnica.com/space/2024/12/trumps-nominee-to-lead-nasa-favors-a-full-embrace-of-commercial-space
Spaceflight 🚀
Spaceflight 🚀  ·  5 months ago

Content Warning

It is not easy to turn a big #bureaucracy, and there will undoubtedly be friction and pain points. But the opportunity here is enticing: #NASA should not be competing with things that private industry is already doing better, such as launching big rockets. Rather, it should find difficult research and development projects at the edge of the possible. https://arstechnica.com/space/2024/12/how-did-the-ceo-of-an-online-payments-firm-become-the-nominee-to-lead-nasa

#SLS#Artemis

Spaceflight 🚀
Spaceflight 🚀  ·  3 months ago

Content Warning

Prof Logsdon* expects big changes under #Trump, Mr #Musk and Mr #Isaacman: scrapping programmes, closing NASA centres and more contracting out to #SpaceX, #BlueOrigin and other private sector firms. "There is a delicate balance between the interests of #NASA, #Congress and the #WhiteHouse."

Mr Isaacman has called the #SLS "outrageously expensive" and said that the major aerospace contractors are "incentivised to be economically #inefficient". https://www.bbc.com/news/articles/cn93797z2dpo

* https://www.planetary.org/profiles/jon-logsdon

Spaceflight 🚀
Spaceflight 🚀  ·  3 months ago

Content Warning

#SpaceX has developed two heavy lift rockets in the last decade, and #BlueOrigin just launched #NewGlenn. Each of these rockets is at least partially reusable ♻️ and flies at less than one-tenth 💵 the cost of the #SLS rocket 💰 https://arstechnica.com/space/2025/02/boeing-has-informed-its-employees-that-nasa-may-cancel-sls-contracts

#Boeing#NASA

Spaceflight 🚀
Spaceflight 🚀  ·  12 months ago
Launch costs have fallen 95% 📉 (with another massive reduction expected in the coming years) thanks to reuse, improved engineering, and increased volumes.
“In economics, we assume that resources are limited; land is limited; natural resources are limited. With #space 🌌, it allows us to change that.” https://www.theguardian.com/science/article/2024/may/03/were-in-a-new-era-the-21st-century-space-race-takes-off

#LaunchCost#SpaceMining

Spaceflight 🚀
Spaceflight 🚀  ·  8 months ago

Content Warning

📊 #ESA 🇪🇺 and its member states forked over $4.4B 💰💰💰💰 to develop #Ariane6. Customer launches are unlikely to pay back development costs any time soon.

#SpaceX has invested over $5B 💰💰💰💰💰 in #Starship 🚀 R&D to date. Starship has proven its expendable capability, and the company is focusing on achieving full #reusability ♻️.

#NASA spent a dizzying $24B 💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰💰 developing #SLS
https://payloadspace.com/rocket-development-costs-by-vehicle-payload-research

#DevelopmentCost#LaunchCost

Spaceflight 🚀
Spaceflight 🚀  ·  last year
When Mr Bridenstine suggested in 2019 that America could return to the Moon 🌙 using #SpaceX’s #FalconHeavy, he provoked a row with Richard #Shelby, a senator from #Alabama who was then chairman of the Senate appropriations committee. Welcoming the #SLS in 2011, Mr Shelby said that #NASA’s exploration of space, “has always been and always will be through Marshall Space Flight Centre [in #Alabama].” https://www.economist.com/science-and-technology/2022/08/24/nasas-space-launch-system-is-yesterdays-rocket

#SpacePolitics#PorkBarrel

Spaceflight 🚀
Spaceflight 🚀  ·  last year

Content Warning

It will become inevitably embarrassing if #Starship is launching dozens of times a year like #Falcon9 is, and #SLS 💰 once every two years. #FalconHeavy is the one SLS was originally in a race against, not Starship. https://arstechnica.com/science/2022/08/former-nasa-official-on-trying-to-stop-sls-there-was-just-such-visible-hostility/
Spaceflight 🚀
Spaceflight 🚀  ·  last year

Content Warning

When Mr Bridenstine suggested in 2019 that America could return to the Moon 🌙 using #SpaceX’s #FalconHeavy, he provoked a row with Richard #Shelby, a senator from #Alabama who was then chairman of the Senate appropriations committee. Welcoming the #SLS in 2011, Mr Shelby said that #NASA’s exploration of space, “has always been and always will be through Marshall Space Flight Centre [in #Alabama].” https://www.economist.com/science-and-technology/2022/08/24/nasas-space-launch-system-is-yesterdays-rocket

#SpacePolitics#PorkBarrel

Spaceflight 🚀
Spaceflight 🚀  ·  last year

Content Warning

"Political and #aerospace interests were more than reluctant to embrace any changes which they viewed as a threat to their own hegemony."
The mainstream media doesn’t cover #SpaceExploration and #SpaceScience with the same questioning 🔍 rigor that they reserve for #politics. People writing about space exploration are mostly cheerleaders 🥳 for the cause, rather than independent observers keeping a watchful eye on how our national monies 💰 are spent. https://www.forbes.com/sites/brucedorminey/2022/06/23/new-book-paints-bleak-picture-of-nasas-human-spaceflight-program/

#NASA #SLS#Artemis

Spaceflight 🚀
Spaceflight 🚀  ·  last year

Content Warning

@lori_garver “It got funded as a rocket to nowhere, and we at #NASA had to figure out something to do with it”.
The #rocket is #unsustainable by design, relying on an old and potentially quite expensive 💰 way to get to #space 🌌. Much of #SLS is a holdover from the #SpaceShuttle. https://www.technologyreview.com/2023/01/09/1065143/nasa-artemis-return-to-moon
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