Top news for December 21, 2008

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NASA Pushes Next-Gen Mars Helicopter Rotor Blades Past Mach 1

Sir David Attenborough Is 100 Years Old Today! This Could Be The Secret of His Longevity.

The Longevity Secrets Helping Athletes Blow Past the Limits of Age

Her Self-Experiment with Drug Detox Almost Broke Her

A Landslide in Alaska Set Off a Tsunami. There May Be More to Come.

Weather Service Races to Rehire as Storm Season Arrives

A Mutation Gave Humans the Gift of Speech. These Mice Have It, Too.

'Whatever Russia is testing, it's sophisticated': 2 Russian satellites get within 10 feet of each other in orbit

A Common Blood Pressure Medicine Could Help Fight a Deadly Superbug

A Sea of Spinning Clouds