Top news for December 21, 2008

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Seeing the unseen: How butterflies can help scientists detect cancer

International Space Station: Live updates

In Photos: Webb Telescope’s Jaw-Dropping New Images Of The Crab Nebula

Below Our Feet May Be ‘Alien Blobs’ From An Ancient Crash, Scientists Say

35 Years After Addressing Congress, James Hansen Has More Climate Warnings

Ken Mattingly, Astronaut Bumped From Apollo 13, Is Dead at 87

7 Questions To Distinguish Occasional Liars From Pathological Liars

When, Where And Why The Clocks Change In The U.S. This Weekend

A Giant Leap for the Leap Second. Is Mankind Ready?

Something Strange Happens to The Human Brain During Zoom Calls