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Mammoth fragments from Siberia raise cloning hopes
Studies: Wind potentially could power the world
Studies: Alzheimer drug may stabilize brain plaque
7 scientists win prestigious Lasker medical awards
Balzan winners include NYU law professor
India launches satellites in 100th space mission
Visible from space: Curiosity tire tracks on Mars
Spacewalking team conquers bolt, installs box
New DNA encyclopedia shows complex inner workings
NASA Dawn spacecraft traveling to dwarf planet