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Cameras Stream Canadian Polar Bear Migration

In the harsh, remote wilds of the Canadian tundra, a wolverine scampers up to a polar bear snoozing near the shore of the Hudson Bay. The bear rises and makes a half-hearted charge, driving away the fierce, badger-like animal.

The brief encounter Thursday was streamed live to computers around the world through a new program that aims to document in real time the annual migration of hundreds of polar bears outside Churchill, Manitoba.

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Up Close, Asteroid Seen to Be Chunk of Would-Be Planet

A rare opportunity to observe an asteroid at close quarters has unveiled a remarkable rock that seems to be a precursor of a planet, astronomers reported on Thursday.

"This is the first object of this kind we have ever seen," Stephane Erard of the Paris Observatory told Agence France Presse.

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AFED Report: Green Change to Lift Arab Economy

Under the auspices of President Michel Suleiman, the Arab Forum for Environment and Development held its annual conference Thursday at the Habtoor Grand Hotel where it stressed how green energy can lift the economy in the Arab world.

Environment Minister Nazem al-Khoury represented Suleiman at the conference which was attended by more than 20 parliament members, as well as around 500 delegates from Arab and international countries.

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Starlight Study Shows Pluto's Chilly Twin

Sky-watchers reported on Wednesday that a small planet in deep space that triggered one of the fiercest controversies in modern astronomy appears to be a colder "twin" of Pluto.

The study, published in the journal Nature, is the biggest probe into the enigmatic planet known as Eris, whose discovery in 2005 raised questions about the Kuiper Belt, a zone of icy objects beyond the orbit of Neptune.

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The Unstable Future of a World Full of Men

As the global population hits seven billion, experts are warning that skewed gender ratios could fuel the emergence of volatile "bachelor nations" driven by an aggressive competition for brides.

The precise consequences of what French population expert Christophe Guilmoto calls the "alarming demographic masculinization" of countries such as India and China as the result of sex-selective abortion remain unclear.

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Iceland to Help France Save Trees from Global Warming

Iceland and France are looking into the possibility of taking French trees endangered by global warming and planting them in Iceland to safeguard them for the future, officials said.

"The main emphasis (in the collaboration) is on research and finding ways to ensure the protection and preservation of the DNA... of the trees in Iceland," Adalsteinn Sigurgeirsson of the Icelandic Forestry Service told Agence France Presse.

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NASA 'Solves' 2,000-Year Supernova Mystery

New infrared observations from NASA telescopes have revealed how the first supernova ever recorded occurred and how its shattered remains ultimately spread out to great distances.

The U.S. space agency said Monday its Spitzer Space Telescope and Wide-field Infrared Survey Explorer (WISE) had solved a mystery dating from 2,000 years ago when Chinese astronomers witnessed what turned out to be an exploding star.

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Soyuz, with First Galileo Satellites, Launched

A Soyuz rocket lifted off on Friday on its maiden flight from Europe's space base here, carrying the first two satellites in the Galileo geopositioning system, an Agence France Presse reporter saw.

The launch -- the first by the veteran rocket beyond Russia's historic bases at Plesetsk and Baikonur -- is part of a commercial deal struck in 2003 to extend the range of Arianespace, which markets services from the European Space Agency (ESA) base in Kourou.

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NASA Postpones Climate Satellite Launch to Oct 28

NASA on Wednesday set October 28 for its planned launch of a satellite to help weather forecasters predict extreme storms and offer scientists a better view of climate change.

The 1.5 billion dollar National Polar-orbiting Operational Environmental Satellite System Preparatory Project (NPP) is the first to measure both short and long term changes in weather and climate, the U.S. space agency said.

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Old German Satellite Hurtles Toward Earth

A retired satellite is hurtling toward the atmosphere and pieces of it could crash into the Earth as early as Friday, the German Aerospace Center says.

Scientists are no longer able to communicate with the dead German satellite ROSAT, which orbits the earth every 90 minutes, and experts are not sure exactly where pieces of it could land.

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