Nearly fifteen years into what was meant to be a three month mission, NASA's Opportunity rover has finally ended its mission.

The Opportunity rover stopped communicating with Earth when a severe dust storm on the surface of Mars covered the rover last June. NASA engineers and technicians have sent over a thousand messages and commands to the rover since then in an attempt to recover it, but all of them have failed. On Tuesday they made one final attempt at communication, and when that was n...
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