(PhysOrg.com) -- NASA's Mars Exploration Rover Opportunity will spend the next several months at a site informally named "Greeley Haven." The name is a tribute to planetary geologist Ronald Greeley (1939-2011), who was a ...
Space Exploration
Jan 6, 2012
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Shortly after midnight, NASA sent one last plea to the rover Spirit, mired in a sand trap on the surface of Mars.
Space Exploration
May 24, 2011
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The prospect of ever hearing from the stuck Mars rover Spirit is fading after it failed to respond to repeated calls from Earth.
Space Exploration
Mar 29, 2011
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(PhysOrg.com) -- Hopes for reviving NASA's Spirit Mars rover dimmed further with passage last week of the point at which the rover's locale received its maximum sunshine for the Martian year.
Space Exploration
Mar 21, 2011
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(PhysOrg.com) -- NASA mission controllers have not heard from the Mars Exploration Rover Spirit since March 22, and the rover is facing its toughest challenge yet -- trying to survive the harsh Martian winter.
Space Exploration
Jul 30, 2010
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