International Space Station Under Threat of Space Junk Collision

At issue is an old rocket that could force the five astronauts on the orbiting station to change their orbit to avoid getting whacked by the debris. It's a Delta 2 rocket that launched a comet-sampling probe called Stardust from the Kennedy Space Center back on Feb. 7, 1999. The rocket is still up there, and ten years later, it has come back to haunt the International Space Station.

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