A NASA Discovery mission to conduct the first orbital study
of the innermost planet
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MESSENGER

Mission News

March 7, 2016
MESSENGER Data May Reveal the Remains of Mercury's Oldest Crust
Mercury's surface is unusually dark, an observation that until recently had planetary scientists mystified. But in a new study published today in Nature Geoscience, a team of researchers provides evidence that the darkening agent is carbon, a finding that offers important clues to the nature of the planet's original crust. [more]

Mission Elapsed Time
August 3, 2004
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Mercury Orbit Insertion
March 18, 2011
00:45 UTC
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Day Spot 1a Day Spot 1 Day Spot 2 Day Spot 3
Hour Spot 1 HourSpot2
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Time since Insertion Burn
Orbits Around Mercury
Orbits completed: 4104

Featured Images

July 1, 2015
MESSENGER's End of Mission Briefing: Unlocking the Mysteries of Mercury
June 3, 2015
Best Determination of MESSENGER's Impact Location
May 6, 2015
End of Orbital Operations
May 1, 2015
In Tribute
April 30, 2015
From the First to the Last