NASA's Swift orbital observatory fell back to Earth after running its mission for more than two decades. A rescue attempt to raise its sinking orbit had earlier failed.
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NASA's Swift orbital observatory fell back to Earth after running its mission for more than two decades. A rescue attempt to raise its sinking orbit had earlier failed.

NASA's Swift orbital observatory fell back to Earth after running its mission for more than two decades. A rescue attempt to raise its sinking orbit had earlier failed.