Top news for December 21, 2008

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Comet From Outside Our Solar System Has Chemistry Unlike Anything We've Ever Seen Before

NASA to launch rescue mission today to save Swift space telescope from burning up in Earth's atmosphere

Cheating Chickadees Are Seduced by Smarts

The growing number of satellites in orbit could soon make telescopes obsolete. 'For astronomy, this would obviously be catastrophic'

This weird 'hot Jupiter' exoplanet has a hotspot in the wrong place, and astronomers aren't sure how

U.S. to Overhaul Radiation Safety Rules to Spur Nuclear Expansion

Atlas V rocket launches 29 Amazon Leo broadband satellites to orbit from Florida (video)

For The First Time, Scientists Say They've Built a Synthetic Cell From Scratch

Almost half of dementia cases could be prevented – but change is needed - EurekAlert!

Study pinpoints how to minimize chances of dangerous wildlife encounters this summer - EurekAlert!