NASA’s Neil Gehrels Swift Observatory has spent more than two decades watching for gamma-ray bursts, the most powerful explosions in the universe. It is now sinking towards the atmosphere, and the plan to save it is about to leave the ground. The agency has h…
NASA’s Neil Gehrels Swift Observatory has spent more than two decades watching for gamma-ray bursts, the most powerful explosions in the universe. It is now sinking towards the atmosphere, and the pl… [+4718 chars]
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