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NASA Mars Opportunity Rover: Brushing out the RAT Cuttings 
Space Ref | Sat, Jan 9
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Opportunity has been investigating the rock known as "Marquette Island." The rock abrasion tool (RAT) was used to grind a 1.5-millimeter-deep (0.06-inch-deep) hole in this very hard rock at the target called "Peck Bay 2."
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Podcast: Audio Reveals 1969 Russian Attempt to Beat U.S. to the Moon
The United States wasn’t the only country hoping to land on the moon in July 1969 — Russians were trying to beat us to the punch by landing the unmanned spacecraft Luna 15 while Apollo 11 was still in orbit around the moon. Now, thanks to the discovery of previously unheard recordings from 196...
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