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Science

NASA, Navy practice space-capsule recovery

NASA and the Navy are training again for the first space capsule recovery in a generation. On Thursday, they completed several days of tests, practicing the retrieval of an unmanned mock-up of the Orion capsule that the U.S. hopes to send someday to an asteroid and Mars.

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Google: Gmail users shouldn't expect privacy

People who use Gmail and other free email systems have no reasonable expectation of privacy, according to papers filed in a U.S. district court by lawyers for Google.

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You could be part of the power grid of the future

The electricity system is experiencing growing pains these days. But it's not only demand for electricity that's expanding -- it's the sources of electricity

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Nevada petroglyphs the oldest in North America

Ancient rock etchings along a dried-up lake bed in Nevada have been confirmed to be the oldest recorded petroglyphs in North America, dating back at least 10,000 years.

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Are we hardwired to be racist?

Are we hardwired to be racist?

The brain evolved to spot differences and see them as threats, but it is also flexible and can learn to ignore its biased impulses.

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Mars food study researchers emerge from dome

Six researchers have spent the past four months living in a small dome on a barren Hawaii lava field at 8,000 feet, trying to figure out what foods astronauts might eat on Mars and during deep-space missions.

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Perseid shower peaks with shooting stars this weekend

It's time again to stretch out the lawn chairs, lie back and enjoy the once-a-year celestial show known as the Perseid meteor shower.

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BBC: The truth and nothing but the truth

Dr. Geoff Bunn discovers that in the history of lie detection, the culture of the comic book influenced the cultural perception of science. What has changed since the heyday of Dick Tracy and Wonder Woman? Bunn investigates the latest technology and the American obsession with lie detection.

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