News tagged with northern hemisphere

Arctic sea ice larger than US melted this year

(AP)—An area of Arctic sea ice bigger than the United States melted this year, according the U.N. weather agency, which said the dramatic decline illustrates that climate change is happening "before our eyes."

dateNov 28, 2012 in Environment
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What's baking on Saturn's moon Titan?

(Phys.org)—Radar images from NASA's Cassini spacecraft reveal some new curiosities on the surface of Saturn's mysterious moon Titan, including a nearly circular feature that resembles a giant hot cross ...

dateOct 16, 2012 in Space Exploration
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CubeSats launched from the space station

Five tiny CubeSats were deployed from the International Space Station on Thursday and astronaut Chris Hadfield called the image above "surreal" on Twitter. And rightly so, as they look like a cross between ...

dateOct 08, 2012 in Space Exploration
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Northern conifers youngest of the species

Dramatic shifts in the planet's climate and geography over millions of years changed the course of evolutionary history for conifer trees, according to a Yale paper in the Proceedings of the National Academy of Sciences.

dateOct 04, 2012 in Plants & Animals
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Scientist turn focus to Titan

(Phys.org)—Humanity has landed a rover on Mars. Now, say scientists, it's time to land a boat on Titan. This outlandish scenario could become reality, according to engineers presenting their proposals at ...

dateSep 28, 2012 in Space Exploration
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Climate change threatens permafrost in soil

In the coming century, permafrost in polar regions and alpine forests in the Northern Hemisphere may thaw rapidly, potentially releasing carbon and nitrogen that could cause additional regional warming. Permafrost occurs ...

dateSep 20, 2012 in Environment
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Vesta in Dawn's rear view mirror

(Phys.org)—NASA's Dawn mission is releasing two parting views of the giant asteroid Vesta, using images that were among the last taken by the spacecraft as it departed its companion for the last year.

dateSep 11, 2012 in Space Exploration
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