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Your cat doesn't really want to kill you

Your cat doesn't really want to kill you

Reports about how your cat "may want to kill you" have been circulating, but anthropologist Barbara J. King explains the misunderstanding behind the claims.
by Barbara J. King

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How we leave the atmosphere: Your weekend reading list

How we leave the atmosphere: Your weekend reading list

This week: The race to carry astronauts into space by 2017, the missile test of the USS Kentucky, and the stumbles of rocket science.
by William Lager

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Astronomers spot most distant object so far in solar system

Astronomers spot most distant object so far in solar system

A random search has turned up a dwarf planet orbiting roughly 10 billion miles away. The far-off world is tiny, and probably very, very cold.
by Geoff Brumfiel

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Grooves on Mars' moon are signs that it's slowly shattering, NASA says

Grooves on Mars' moon are signs that it's slowly shattering, NASA says

Spinning in orbit just 3,700 miles above the Mars' surface, the planet's largest moon, Phobos, seems to be undergoing a "structural failure."

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Earth selfie: A tropical storm forms

Earth selfie: A tropical storm forms

Each week, we bring you an Earth selfie, straight from deep space, courtesy of NASA.
by William Lager

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As kids go online, new tools for parents to spy

As kids go online, new tools for parents to spy

As kids get online earlier and stay there longer, a new crop of technology is evolving to limit what they can see -- and to spy on their every move.
by Aarti Shahani

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Researchers reveal how climate change killed Mars

Researchers reveal how climate change killed Mars

Mars used to be much warmer and wetter than it is today. Scientists are unraveling the mystery of why it dried out.
by Geoff Brumfiel

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Physicists probe antimatter for clues to how it all began

Physicists probe antimatter for clues to how it all began

Physicists don't know why there's more matter than anitmatter in our universe. New research smashed together atoms of pure gold to look for clues.
by Geoff Brumfiel

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