Moon to Mars

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      A new study shows that growing up in space can weaken a key part of the immune system in fruit flies.
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      A new study reports how spaceflight alters the activity of a fungal pathogen.
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      Performing scientific field work becomes much harder while enclosed in a spacesuit, with limits placed on vision, hearing, touch and more.
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      A new lunar rover launched from Earth on December 2nd, and is now on its way to the Moon's surface.
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      The final entry on our list of spacewalking women is astronaut Tracy Caldwell Dyson. Along with performing EVAs in orbit, Dyson was also the first astronaut to be born after the Apollo missions.
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      Tenth on our list of spacewalking women is astronaut Nicole Stott. She performed her EVA from the International Space Station. Stott was also on the crew that holds the record for the longest aquanaut mission in the Aquarius research habitat.
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      Ninth on our list of spacewalking women is astronaut Sunita Williams. With seven EVAs beneath her belt, Williams is the reigning queen of spacewalks.
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      Eighth in our list of spacewalking women is astronaut Heidemarie Stefanyshyn-Piper. Stefanyshyn-Piper has hung her feet out of the Space Shuttles five separate times in orbit.
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      Data from NASA's GRAIL mission is helping scientists understand how the face of the Moon, and it's distribution of impact basins, was shaped over time.
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      Seventh in our list of spacewalking women is astronaut Peggy Whitson. Whitson is a biochemist and has spent an amazing 39 hours and 46 minutes floating outside of the safety of a spacecraft in Earth orbit.
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      Sixth in our list of spacewalking women is astronaut Susan J. Helms. Helms and her crewmate James S. Voss hold the record for the longest single space walk to date.
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      A new study explores effects of moonlight on nocturnal mammals, and the results could change the way scientsts think about moonlight and predation.
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      Fifth in our list of spacewalking women is astronaut Tamara E. Jernigan. Jernigan completed one extravehicular activity in her career, but it lasted 7 hours and 55 minutes.
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      Fourth in our list of spacewalking women is astronaut Linda M. Godwin. Godwin performed two spacewalks, the first from the Space Shuttle Atlantis and a second from Space Shuttle Endeavor.
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      Volunteers have spent 21 days in bed while being monitored by scientists. The bed-rest study will provide clues to how astronauts adapt to long-duration spaceflight.
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