How Should We Respond When Humans and  Sharks like this one off the coast of French Polynesia can give beach-goers...
Farming Sprang Up In Multiple Places These Lithic artifacts of ancient farmers were found in Chogha Golan, Iran....
Mars Rover Watches the Sun Set and Mo  The sun sets over the rim of Gale Crater as seen by NASA's Mars Science Lab...
Explosion in Number of Potentially Ha  An artist's conception of an exoplanet orbiting a star 30 light-years away ...
White Dwarf Morphs into Massive Pulsi  White Dwarf Morphs into Massive Pulsing Crystal Astronomy lets us peer int...
Astronaut in Space Drives Robot on Earth NASA's K10 rover is seen at dawn at the Ames Research Center's specially bu...
Sabertooths Had Weak Bites, Used Neck  A skeleton of Smilodon fatalis, an extinct sabertooth cat, modeled after fo...
Pluto’s Newly Discovered Moons Get O  The artist’s concept above shows the Pluto system from the surface of one ...
How Old Is E.T.? Artist's impression of an alien civilization in a distant star system. Ove...
Real Doomsday: Earth Dead in 2.8 Bill  \Real Doomsday: Earth Dead in 2.8 Billion Years The Rolling Stones’ Mick ...

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