Top news for December 21, 2008

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Follow Your Nose to the Next Museum Exhibit

Richard A. Cash, Who Saved Millions From Dehydration, Dies at 83

Scientists Have Discovered a “Lost” Mayan Megacity, Complete With Hidden Pyramids

Meet ‘Chonkus,’ the Algae Trying to End the Climate Crisis

Why NASA’s SPHEREx Mission Will Make ‘Most Colorful’ Cosmic Map Ever

Light Takes Over: Breakthrough Optical Array Revolutionizes Computing

Moon named 'Miranda' orbiting Uranus seems to have an ocean and possibly life

4 Key Facts: How the Montreal Protocol Saved Earth’s Ozone Layer—and Millions of Lives

New Study: Common Hospital Infection Could Trigger Alzheimer’s

Precision Mapping of Millions of Galaxies To Unveil Secrets of Dark Matter and Cosmic Expansion