Top news for December 21, 2008

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New marine scale worm species first to provide evidence of male dwarfism

Ground-Breaking New Type of Intelligent Material – Many Potential Uses From Drug Delivery to Energy Storage

Red Knots in Steepest Decline in Years, Threatening the Species’ Survival

Report: NASA investigating UFO sightings, agency chief says

Can we stop time?

NASA's Mars helicopter Ingenuity set for 7th Red Planet flight on Sunday

Rocket launch today: SpaceX launching US spy satellite in morning liftoff

On this day in space! Oct. 14, 1947: Chuck Yeager smashes the sound barrier.

15 Chinese Elephants Are On a 300-Mile Journey. Why, No One Knows.

Arthur Staats Dies at 97; Called ‘Time Out’ for Unruly Kids