NASA picks SpaceX to carry ISS to oceanic resting place after 2030

NASA awarded on Tuesday SpaceX an $843 million contract to build the vessel that will bring the International Space Station out of its longtime orbit of Earth when its operating lifespan ends in 2030.

NASA on Tuesday said it had picked SpaceX to build a vessel to carry the International Space Station back through Earth's atmosphere and on to a final resting place in the Pacific Ocean after it is retired in 2030.

Elon Musk's company has been awarded a contract with a potential value of $843 million to develop and deliver the spaceship, dubbed the US Deorbit Vehicle.

"Selecting a US 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," said NASA's Ken Bowersox in a statement.

NASA plans to take ownership of the spacecraft after SpaceX builds it, and control operations throughout the mission.

Weighing 430,000 kilograms (950,000) pounds, the ISS is by far the largest single structure ever built in space.

Based on past observations of how other stations such as Mir and Skylab disintegrated on atmospheric re-entry, NASA engineers expect the orbital outpost to break up in three stages.

First, the massive solar arrays and the radiators that keep the orbital lab cool will come off, then individual modules will break off from the truss, or the station's backbone structure. Finally, the truss and the modules themselves will tear apart.

The first segment of the ISS was launched in 1998, and it has been continuously inhabited by an international crew since 2001.


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