Ancient marine predator had a built-in float

About 240 million years ago, when reptiles ruled the ocean, a small lizard-like predator floated near the bottom of the edges in shallow water, picking off prey with fang-like teeth. A short and flat tail, used for balance, ...

Cold air rises—what that means for Earth's climate

Conventional knowledge has it that warm air rises while cold air sinks. But a study from the University of California, Davis, found that in the tropical atmosphere, cold air rises due to an overlooked effect—the lightness ...

NEEMO: Testing space gear under the sea

NASA's Extreme Environment Mission Operations takes place more than 18 meters below the surface of the Atlantic Ocean. For nine days, astronauts, engineers, and scientists live and work underwater, testing new technologies ...

Walking on the moon – underwater

It's one of the deepest 'swimming pools' in Europe, but for three years has been helping preparations for a human return to the moon. ESA's Neutral Buoyancy Facility at the European Astronaut Centre has been the site of the ...

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