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Scientists Watch Enormous Antarctic Iceberg Drift

Scientists are watching an iceberg bigger than the island of Guam as it slowly moves away from an Antarctic glacier.

NASA scientist Kelly Brunt said it is more a wonder than a worry and is not a threat to shipping or sea level rise.

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Scientists Reverse Memory Loss in Mice with Alzheimer's

Spanish scientists have for the first time used gene therapy to reverse memory loss in mice with Alzheimer's, an advance that could lead to new drugs to treat the disease, they said Wednesday.

The Autonomous University of Barcelona team injected a gene which causes the production of a protein that is blocked in patients with Alzheimer's into the hippocampus -- a region of the brian essential to memory processing -- in mice that were in the initial stages of the disease.

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Soviet Space Capsule Up for Sale in Belgium

For those who have everything, how about a Soviet-era space capsule dating back to the 1970s, when it carried three cosmonauts into space?

German firm Lempertz unveiled plans Wednesday for what it says is the first such auction in Europe, with the capsule expected to fetch up to 1.4 million euros ($1.9 million) on May 7.

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U.S. Urged to Drop India WTO Case on Solar

Environmentalists Wednesday urged the United States to drop plans to haul India to the WTO to open its solar market, saying the action would hurt the fight against climate change.

The World Trade Organization's dispute settlement body in Geneva has scheduled Friday to hear the U.S. case for a panel against India, which has some of the world's most ambitious plans for expanding solar power.

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Study: Sloth Guts are Designed for Hanging Upside Down

Three-toed sloths have a unique abdominal design -- their innards fixed to their lower ribs to avoid squashing the lungs while hanging upside down, a study said Wednesday.

The South and Central American forest dweller, also known as the brown-throated sloth, spends a large part of its life hanging from its hind legs to reach young, tender leaves growing on the tips of branches, as well as to groom.

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U.S. Astronauts to Step out on Spacewalk for Repairs

Two U.S. astronauts are preparing to step out on a brief spacewalk Wednesday to install a backup computer at the International Space Station after one failed earlier this month.

Astronauts Rick Mastracchio and Steve Swanson are to embark on the 2.5 hour spacewalk beginning at 9:20 am (1320 GMT).

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Report: 60% of China Underground Water Polluted

Sixty percent of underground water in China which is officially monitored is too polluted to drink directly, state media have reported, underlining the country's grave environmental problems.

Water quality measured in 203 cities across the country last year rated "very poor" or "relatively poor" in an annual survey released by the Ministry of Land and Resources, the official Xinhua news agency said late Tuesday.

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Drones Unearth more Details about Chaco Culture

Recently published research describes how archaeologists outfitted a customized drone with a heat-sensing camera to unearth what they believe are ceremonial pits and other features at the site of an ancient village in New Mexico.

The discovery of the structures hidden beneath layers of sediment and sagebrush is being hailed as an important step that could help archaeologists shed light on mysteries long buried by eroding desert landscapes from the American Southwest to the Middle East. The results of the research were published earlier this month in the Journal of Archaeological Science.

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Sixty Percent of Japanese Support Whale Hunt

A handout picture taken by Japan's Institute of Cetacean Research (ICR) in 2013 shows a Bryde's whale on the deck of a Japanese whaling ship

Handout photo taken on January 5, 2014 by Sea Shepherd Australia Ltd shows crew members walking amongst blood, allegedly from four minke whales, after they were cut up on the deck of the Japanese factory ship Nisshin MaruView Photo

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SpaceX Supply Capsule Berths at ISS

The unmanned Dragon capsule from the private US firm SpaceX successfully berthed at the International Space Station Sunday on its third trip carrying supplies and equipment to the orbiting lab.

NASA television broadcast live images of the crew inside the ISS as the capsule was installed on the Earth-facing port of the Harmony module, a US-built utility hub, at 1406 GMT.

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