Dark Pit on Mars' Arsia Mons, with Sunlit Wall

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Credit: NASAJPL-CaltechUniversity of Arizona
Credit: NASA/JPL-Caltech/University of Arizona

The High Resolution Imaging Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter has confirmed that a dark pit seen on Mars in an earlier HiRISE image really is a vertical shaft that cuts through lava flow on the flank of the Arsia Mons volcano.


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All News summaries for August 31, 2007

Astronauts step out for longest, hardest spacewalk

2 hours ago | User rating: not rated yet
(AP) -- Astronauts stepped out for the longest and hardest spacewalk of their mission Saturday to wrap up greasy repair work on a gummed-up joint at the international space station.

Astronauts face hardest spacewalk to finish repair

9 hours ago | User rating: not rated yet
(AP) -- Astronauts up on the international space station faced the longest and hardest spacewalk of their mission Saturday, a seven-hour-plus excursion to wrap up repair work on a gummed-up joint.

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Nov 21, 2008 | User rating: not rated yet
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Nov 21, 2008 | User rating: not rated yet
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