Top news for December 21, 2008

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Site-Wide Environmental Assessment for Marshall Space Flight Center, Alabama

Carbon Dioxide Levels Have Passed a New Milestone

Boeing Starliner 1st astronaut flight: Live updates

World-First: Woman Receives Combined Heart Pump And Pig Kidney Transplant

Breakthrough: Rare Gene Mutation Offers Clues to Preventing Type 1 Diabetes

How Scientists Are Preparing for Apophis's Unnervingly Close Brush With Earth

New Research Links Chronic Pain to Socioeconomic Background

Scientists Discover Giant, Prehistoric Salmon With Tusk-Like Teeth

Antarctica's Extended Ozone Hole Raises Concerns For Penguin And Seal Breeding

Compact Quantum Light Processing: Time-Bending Optical Computing Breakthrough