Top news for December 21, 2008

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Vulcan Centaur rocket fails during return-to-flight launch, 40 Amazon satellites lost (video)

SpaceX’s Latest Starship Launch Skips Attempt to Catch the Booster

100 launches! Rocket Lab sends Earth-observing satellite to orbit on milestone mission (video, photos)

Measles is back in the United States, WHO authorities say

Yale scientists reveal what really slows aging and what doesn't

Math Puzzle: Slippery slopes

Scientists Discover a Curious 'Dragonball' Structure Deep in The South China Sea

Is camouflage a form of communication?

'Links with the British royal family would eventually prove crucial': How DNA solved the 70-year mystery of what happened to the executed members of the last Russian imperial family

Stanford Scientists Discover Resting Brain Activity May Predict Alzheimer's Years Before Memory Decline