NASA's MESSENGER Mission: Today, the MESSENGER team celebrates the fourth anniversary of the spacecraft's Mercury orbit insertion. On the evening of March 17, 2011 (EDT), the spacecraft made history when it became the first to orbit the innermost planet. Over the last four years, its instruments have fully mapped Mercury's surface and yielded discoveries that have changed views on how the inner planets formed and evolved.
With the End in Sight, the MESSENGER Team Celebrates Fourth Orbital Anniversary (Released: 2015-03-17 17:10:11)
PTTU - 17 Mar 2015 23:58
NASA's MESSENGER Mission: Today, the MESSENGER team celebrates the fourth anniversary of the spacecraft's Mercury orbit insertion. On the evening of March 17, 2011 (EDT), the spacecraft made history when it became the first to orbit the innermost planet. Over the last four years, its instruments have fully mapped Mercury's surface and yielded discoveries that have changed views on how the inner planets formed and evolved.
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