Top news for December 21, 2008

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The moon and Jupiter steal the show after sunset tonight

E.P.A., Maryland Sue D.C. Utility Over Potomac River Sewage

You've heard of the Space Force. Now there's a 'NASA Force' — but it's not about making space war

The Nancy Grace Roman Space Telescope, NASA's next great observatory, is finally complete

Curiosity Finds New Building Blocks of Life on Mars in Landmark Experiment

Stellar Flares May Expand Habitable Zones Around Small Stars

Belts of Green in the Washington Suburbs

Scientists Finally Crack Decades-Old Mystery of “Breathing” Lasers

“Like Liquid Metal”: Scientists Create Strange Shape-Shifting Material

Scientists Discover Hidden Pathway Inside Catalysts That Defies Decades of Assumptions