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Spacecraft glitch means NASA will have to wait to learn if Mars rover lands safely (+video)

A glitch in a spacecraft orbiting Mars will make for a blind landing of NASA's Curiosity Mars rover, which is scheduled to touch down on the Red Planet next month.

This 11-minute animation depicts key events of NASA's Mars Science Laboratory mission, which will launch in late 2011 and land a rover, Curiosity, on Mars in August 2012.
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NASA's new Mars rover is heading for a risky do-or-die touchdown next month to assess conditions for life on the planet, but the U.S. space agency may not know for hours whether it arrived safely, managers said on Monday.

That's because the satellite that NASA was counting on for real-time coverage of the Mars Science Laboratory's descent into Gale Crater, located near the planet's equator, was sidelined last month by a maneuvering system glitch.

Managers were able to recover the satellite, but it is now in a different orbit than intended, which may make it unable to view and record the rover's seven-minute descent and landing.

Two other spacecraft orbiting Mars will be monitoring the probe's arrival, but one records data for later playback and the other won't be aligned to see the last minute of flight, NASA's Mars exploration program chief Doug McCuistion told reporters.

"“We're assessing what the issues are," McCuistion said. “"There's no impact to landing itself. It's simply how that data gets returned to us and how timely that data is."

Mars Science Lab, nicknamed Curiosity, is scheduled to land at 1:31 a.m. EDT (0531 GMT) on Aug. 6 inside an 96-mile (155-km) wide impact basin that may be one of the final resting places for Mars' lost surface water.

The planet, which is about 1.5 times as far away from the sun as Earth, is a cold, dry and acidic desert today. But that was not always the case.

Previous orbiters, landers and rovers have turned up solid evidence of water, including geologic features such as channels, as well as chemical fingerprints of clays and minerals that on Earth form when rock interacts with water.

Gale Crater is one of the lowest places on Mars.

Searching for water


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