After more than four years of orbiting Mercury, NASA’s Messenger spacecraft is about to end its mission with a bang. After more than 4,100 orbits around the closest planet to the sun, the satellite will crash into Mercury’s crater-pocked surface April 30.
via L.A. Times - Science http://ift.tt/1FYNMfx
via L.A. Times - Science http://ift.tt/1FYNMfx
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