Top news for December 21, 2008

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Saturn's moon Titan could have formed in a merger of two old moons - EurekAlert!

These Mathematicians Are Putting A.I. to the Test

Annular 'ring of fire' solar eclipse February 2026: Live updates

Portland Lawsuit Alleges Tear Gas Use by ICE Is a Health Threat

Why are the launch windows for NASA's Artemis 2 moon mission so short?

Asteroid samples NASA brought to Earth suggest life's building blocks may be widespread in the universe

Hubble Space Telescope captures the stunning final breaths of a dying star

Vulcan Centaur rocket launches 'neighborhood watch' satellites for the US military (video)

Mexico May Be on Brink of Losing Its Measles-Free Status

This Comet Stopped Spinning. Then It Started Rotating Backward.