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MESSENGER: 1,000 Earth Days Orbiting Mercury

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MESSENGER Celebrates 1,000 Earth Days in Orbit around Mercury

MESSENGER Mission News

December 11, 2013

Later today, the MESSENGER spacecraft will have completed 1,000 Earth days of flight operations in orbit around Mercury. "This milestone is a testament to the outstanding work of those who designed, tested, and operated this spacecraft," says Jim McAdams of the Johns Hopkins University Applied Physics Laboratory (APL) and the lead engineer for MESSENGER's mission design team.

"MESSENGER was designed to function for eight years following launch and to withstand the harsh environmental conditions of the inner solar system and solar heating up to 11 times greater than experienced by spacecraft near Earth," McAdams says. "The probe not only has continued to function, it has thrived, with very little loss of planned observations for more than nine years and four months since launch."

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