Space

Dark energy and dark matter may not exist after all

Life's first energy source discovered

Man accused of stealing Sally Ride's flight suit, among other collectibles

Spectacular images of other galaxies as viewed by Hubble

NASA flies recycled spacecraft by Earth and comet

4.5 billion-year-old meteorite found in Oregon

Backward-moving black holes are more powerful

New space computer program thinks like us

Two giant black holes reveal bizarre behavior

Astronauts spill secrets to space toilet training

Gigantic airship will also serve as 'stratellite'

Scientists may have discovered the origin of life

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