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U.S., German Astronauts Finish Spacewalk to Maintain ISS

An American and a German astronaut spent just over six hours on a spacewalk outside the International Space Station (ISS) Tuesday for equipment repairs and maintenance, NASA said.

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Study Shows U.S. Tidal Floods Will be 'Chronic' in 15 Yrs

Many U.S. coastal communities already struggle with flooding at high tides, a problem that will become "chronic" in the coming 15 years due to global warming, scientists said Wednesday.

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Major New Fault Found in New Zealand Capital

A new geological fault capable of generating a 7.1-magnitude earthquake has been found in Wellington, confirming the New Zealand capital's status as one of the world's most seismically active cities, scientists revealed Wednesday.

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Scientists Sound Alarm over Ocean Acidification

Ocean acidification has risen by a quarter since pre-industrial times as a result of rising carbon emissions, casting a shadow over the seas as a future source of food, scientists warned Wednesday.

In the past two centuries, the sea's acidity level has risen 26 percent, mirroring the proportion of carbon dioxide it absorbs from the air, they said in a report to the U.N. Convention on Biological Diversity (CBD) meeting in South Korea.

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Low-Carbon LED Lamp Wins Nobel for Japanese Trio

Three Japanese-born researchers on Tuesday won the Nobel Prize for Physics for inventing the LED lamp, a boon in the fight against global warming and aiding people in poverty.

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Japan Puts New Weather Satellite into Space

Japan put a new weather satellite into space Tuesday in the hope it can improve the forecasting of typhoons and detect volcanic gas plumes.

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2nd Total Lunar Eclipse of Year Coming Up Wed.

If you missed April's total eclipse of the moon, now's your chance. But you'll need to get up early.

Wednesday morning, if the skies are clear, North Americans will have prime viewing of a full lunar eclipse, especially in the West. The full moon will be obscured by Earth's shadow in the predawn hours. The total eclipse will last an hour — until sunrise on the East Coast.

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Nobel Shows Importance of Location, Location, Location

Generations of scientists have pored over a seemingly basic but ultimately complex skill: how are humans able to find their way from one spot to another?

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Lack of Ocean Heat Puzzles NASA Hunt for Warming 'Hiatus'

The deep ocean may not be hiding heat after all, raising new questions about why global warming appears to have slowed in recent years, said the U.S. space agency Monday.

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NY Baffled as Baby Bear Found Dead in Central Park

A baby bear was found dead with trauma to the body in New York's Central Park on Monday, baffling conservationists who are investigating where the cub came from.

Police told Agence France Presse that officers were called to Manhattan's largest public park shortly before 10 am by a warden after the baby bear was found lying in a grassy area.

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