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Cloud-like 'plume' on Mars baffles scientists
Mystery in space: Scientists are puzzled by images of Mars that show a vast plume of haze in the planet's hemisphere. What exactly is it? Dr. Seth Shostak from the SETI Institute weighs in.
Space on msnbc
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Science! NASA launches new mission to find planets00:47
Bolden: Mars by the 2030s ‘well within our grasp’04:57
SCIENCE: Astronauts repair International Space Station00:23
No room for conflicts in space01:39
Mae Jemison, the first African American woman to go to space is #OneGreatWoman05:52