Your body means the world to the microbes that live on it.
What we can learn from a massive meteor crater
Do you measure tequila shots in an Erlenmeyer flask? Read on.
Most scientists give the credit to a group of mossy swamp-dwellers that originated underwater, but new evidence points to a mysterious life-form that lived--and died--millions of years earlier.
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The most explicit look yet at the impact that wiped out more than half of all life on earth
A blueprint for the eco-tropolis of the future with fresh air, pristine water and cheap energy. Plus, 48 audacious ideas to save the planet
Scientists discover ancient rocks on the sea-floor that give them a window into the Earth's mantle
Scientists cast doubt over the Pentagon's plan to build a new nuclear bunker buster
NASA scientists use radar to make a video of a rock four million miles away
Your complete guide to today's near-earth asteroid flyby
The 150-foot-wide chunk of rock and ice passed within the orbit of the moon and geosynchronous satellites.
Jellyfish Nebula holds signature of initial stellar fireballs
A look at the first complete map of one of nature's most diverse classes of life
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