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Mars Rovers Advance Understanding of the Red Planet
NASA's Mars rovers, Spirit and Opportunity, have been working overtime to help scientists better understand ancient environmental conditions on the red planet.
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NASA's Mars Rovers Continue to Explore and Amaze
NASA's durable twin Mars rovers have successfully explored the surface of the mysterious red planet for a full Martian year (687 Earth days).
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NASA Rover Helps Reveal Possible Secrets of Martian Life
Life may have had a tough time getting started in the ancient environment that left its mark in the Martian rock layers examined by NASA's Opportunity rover.
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NASA's Durable Spirit Sends Intriguing New Images From Mars
Working atop a range of Martian hills, NASA's Spirit rover is rewarding researchers with tempting scenes filled with evidence of past planet environments.
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NASA's Opportunity Rover Rolls Free on Mars
Engineers and mission managers for NASA's Mars Exploration Rover mission cheered when images from the Martian surface confirmed Opportunity had successfully escaped from a sand trap.
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Rovers Continue Martian Missions
NASA's Mars rover Opportunity is trying to escape from a sand trap, while its twin, Spirit, has been busy finding new clues to a wet and violent early Martian history.
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Rover Team Tests Mars Moves on Earth
Mars rover engineers are using a testing laboratory to simulate specific Mars surface conditions where NASA's rover Opportunity has spun its wheels in a small dune.
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Mars Rover Panorama Shows Vista From 'Lookout' Point
From a ridgeline vantage point overlooking slopes, valleys and plains, NASA's Mars Exploration Rover Spirit has returned its latest color panorama of the martian landscape.
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Movie Clip Shows Whirlwinds Carrying Dust on Mars
NASA's Mars Exploration Rover Spirit is taking movies of dust devils -- whirlwinds carrying dust -- scooting across a plain on Mars.
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Durable Mars Rovers Sent Into Third Overtime Period
NASA has approved up to 18 more months of operations for Spirit and Opportunity
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Diagnostic Tests Planned for Instrument on Mars Rover
NASA has suspended use of one of the mineral-identifying tools on the Opportunity Mars rover .
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Mars Rovers Break Driving Records, Examine Soil
On three consecutive days, Opportunity accomplished unprecedented feats of martian motion.
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Twin Mars Rovers Still Going Strong
NASA's Spirit rover found a new class of water-affected rock, while its twin, Opportunity, finished inspecting its own heat shield and set a new martian driving record.
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Rover Finds an Iron Meteorite on Mars
Opportunity has found an iron meteorite, the first meteorite of any type ever identified on another planet.
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Reports Detail Rover Discoveries
The most dramatic findings so far from NASA's twin Mars rovers -- telltale evidence for a wet and possibly habitable environment in the arid planet's past -- passed rigorous scientific scrutiny for publication in a major research journal.
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Rover to Reverse Course to Exit Crater
Operators of NASA's Mars Exploration Rover Opportunity have determined that a proposed route eastward out of "Endurance Crater" is not passable.
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Spirit Adds Clues About Martian Hills
All the scientific tools on NASA's two Mars Exploration Rovers are still working well, a full 10 months after Spirit's dramatic landing.
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Rovers Pass 50,000-Picture Mark
A view of the sundial-like calibration target on NASA's Mars Exploration Rover Spirit is the 50,000th image from the twin rovers that have been exploring Mars since January.
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Team Analyzing Mars Rover Developments
NASA's Mars rover team is working both to resolve an intermittent problem that affects steering on Spirit and also to understand a marked improvement in Opportunity's power supply.
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Mars Rovers Probing Water History
New findings raise the possibility Opportunity's work area was soaked long ago, before it dried and eroded into a wide plain.
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