Space Systems
NASA has switched off the Swift telescope after 22 years, and it is expected to fall to Earth within weeks
NASA has ended the science mission of its Neil Gehrels Swift Observatory after nearly 22 years in orbit. The spacecraft made its last observation on Oct. 20 and now circles less than 171 miles (275 kilometers) above Earth, low enough that the thin air still present at that height is dragging it down. NASA expects […]
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