NASA selects SpaceX to build deorbit vehicle for International Space Station

a T-shaped space station with multiple solar arrays floats above earth
The International Space Station in Earth orbit. (Image credit: NASA)

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.

NASA leadership praised the space station's legacy in the statement, adding that deorbiting the ISS will help pave the way for planned commercial space stations.

"Selecting a U.S. Deorbit Vehicle for the International Space Station will help NASA and its international partners ensure a safe and responsible transition in low Earth orbit at the end of station operations. This decision also supports NASA's plans for future commercial destinations and allows for the continued use of space near Earth," said NASA's Ken Bowersox, associate administrator for Space Operations Mission Directorate at the agency's Headquarters in Washington. 

"The orbital laboratory remains a blueprint for science, exploration, and partnerships in space for the benefit of all," Bowersox added.

Several major ISS partners are committed to operations through 2030, while Russian space officials have confirmed their support through 2028

While the 2030 end date has been referenced in NASA budgetary materials in recent years, some NASA officials have stated that the station could potentially remain operational past that date. "There's nothing magical that happens in 2030," Steve Stich, manager of NASA"s commercial crew program at Johnson Space Center (JSC) in Houston, said during a Jan. 25, 2024 briefing. 

Stich added that the ISS will continue operations until commercial space stations are in orbit and ready for crews. "We want [the commercial stations] to be supportive, and then when they're ready to go, that's when ISS will move out of the way," Stich said.

Several commercial space stations are in various stages of development. Axiom Space is developing its Axiom Station, for instance, while Blue Origin is planning its own, known as Orbital Reef, alongside Sierra Space, Boeing and Amazon. 

Voyager Space also has its Starlab complex in the works with help from Lockheed Martin and Northrop Grumman. And California-based Vast Space plans to launch its Haven-1 module to orbit in 2025 aboard a SpaceX Falcon 9 rocket.

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Brett Tingley
Managing Editor, Space.com

Brett is curious about emerging aerospace technologies, alternative launch concepts, military space developments and uncrewed aircraft systems. Brett's work has appeared on Scientific American, The War Zone, Popular Science, the History Channel, Science Discovery and more. Brett has English degrees from Clemson University and the University of North Carolina at Charlotte. In his free time, Brett enjoys skywatching throughout the dark skies of the Appalachian mountains.

  • Philly
    Why do I have a feeling another company is going to be launching a new lawsuit soon about this decision. Maybe they will make it to orbit by 2030?
    Reply
  • frankjbrown
    Admin said:
    NASA has selected SpaceX to develop a vehicle that will bring the International Space Station to a fiery end when the time comes.

    NASA selects SpaceX to build deorbit vehicle for International Space Station : Read more
    So just a question...since the most expensive part of a space mission is lofting the equipment into orbit, why not park the ISS in a lunar orbit and salvage parts for a future lunar base? Or since spacex is the contractor of choice, perhaps their vehicle could be capable of performing a soft landing on the lunar surface of the entire ISS?
    Reply
  • billslugg
    The delta V to put something in LEO is 9256 m/s.
    The delta V to get to lunar orbit from LEO is 3940 m/s.

    It would take 40% of what we've already spent on delta V, and for essentially nothing.
    Little of it is reusable, most of it is past its service life, no one wants the liability.
    No one wants to pay for something on speculation it might be useful some day.
    It's not worth it, especially since the cost of delta V is shrinking so fast.
    Reply
  • frankjbrown
    billslugg said:
    The delta V to put something in LEO is 9256 m/s.
    The delta V to get to lunar orbit from LEO is 3940 m/s.

    It would take 40% of what we've already spent on delta V, and for essentially nothing.
    Little of it is reusable, most of it is past its service life, no one wants the liability.
    No one wants to pay for something on speculation it might be useful some day.
    It's not worth it, especially since the cost of delta V is shrinking so fast.
    While I understand this, if we are going to spend the money to build a "space tug" to de-oribit the station, it seems that the same vehicle could just as easily send the ISS to the moon. But I do get the obsolescence / liability thing. On the other hand, there are no supplies or spare parts on the moon. Think about the clever hack of the Apollo 13 Carbon Dioxide Scrubber, that facilitated the rescue of the crew. It would have been a different story if there were no resources to draw from.
    Reply
  • billslugg
    In order to deorbit something from LEO, you only need to boost it about 20 m/s. The space tug would be designed to handle that. In order to put ISS into orbit around the Moon, a tug would need to accelerate ISS by 3940 m/s. Such a tug would be about 200 times bigger than what is being planned.
    Reply