this post was submitted on 27 Jun 2024
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NASA selects SpaceX to build deorbit vehicle for International Space Station (www.space.com)
submitted 4 months ago by [email protected] to c/[email protected]
24 comments fedilink hide all child comments
 

NASA has selected SpaceX to develop a vehicle that will bring the International Space Station to a fiery end when the time comes.

The space agency first asked U.S. aerospace companies for proposals in March 2023 and then again in September of that year. The request was for a "space tug" vehicle that could help deorbit the U.S. sections of the International Space Station (ISS) safely.

On Wednesday (June 26), the agency issued a statement announcing that SpaceX has been selected to develop and deliver the "U.S. Deorbit Vehicle" as it's known. The contract is worth up to $843 million; that total does not include any launch costs, however, and is for the vehicle development only. The vehicle will be responsible for disposing of the space station "in a controlled manner after the end of its operational life in 2030," the statement adds.

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[–] [email protected] 7 points 4 months ago (3 children)

Good point, if they’re sending a rocket up there anyway, why not just push it away from earth rather than towards it? Is it because it’s in LEO and there’s a ton of other satellites farther out?

[–] [email protected] 18 points 4 months ago (2 children)

Way too much dV to leave earth

[–] [email protected] 8 points 4 months ago (1 children)

There's no need to leave earth, just lift it into a medium earth orbit. There are literally thousands of kilometres in between low earth orbit (where there are lots of communications, spy, navigation and weather satellites) and geosynchronous (where there are lots of communications satellites), and outside of those two there's virtually nothing there

[–] [email protected] 3 points 4 months ago

Still way too much dV. Deorbiting might be a few hundred m/s. Getting up to medium earth orbit could easily be 1000-2000 m/s.