Could Pregnancy Hormone Help Heal Brain Injuries?
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Why Leaves Really Fall Off Trees
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A Head-Shrinker Studies The Zombie Brain
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People ... People Who Eat People
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Why Runners Like To Feel The Burn
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Examining Gene Therapy As Treatment For Blindness
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Melting at the base of this Texas-sized ice pack in the Amundsen Sea off Antarctica could lead to significant ocean level rise in the long term. This image of the ice shelf was taken on the first flight of Ice Bridge from an altitude of 20,000 feet. NASA hide caption

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NASA Launches Mission To Track Polar Ice By Plane
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Senate Hearing On Climate Bill Heats Up
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Astronomers Detect Most Distant Object Ever Seen
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U.S. Envoy: No Bilateral Climate Deal With China
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Clean Energy Touted As Good For Planet And Jobs
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Exploring New Methods To Make Swine Flu Vaccine
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