News tagged with northern hemisphere

Cassini watches storm choke on its own tail

(Phys.org)—Call it a Saturnian version of the Ouroboros, the mythical serpent that bites its own tail. In a new paper that provides the most detail yet about the life and death of a monstrous thunder-and-lightning storm ...

dateJan 31, 2013 in Space Exploration
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Team pioneers new way to survey thawing Arctic

(Phys.org)—In the snow of Alaska, a Stanford-led team of researchers has found a new way to determine if the soil beneath lakes, normally frozen, is thawing as a result of climate change. If so, the lakes could become a ...

dateJan 31, 2013 in Earth Sciences
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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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Deep astrophoto of LDN 673

What a stunning view of this dark region of space! This image, by astrophotographer Callum Hayton shows LDN 673, a molecular cloud complex that lies in the constellation Aquila. This region is massive—around 67 trillion ...

dateAug 05, 2014 in Space Exploration
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When the Sahara turned to sand

The Sahara wasn't always a desert. Trees and grasslands dominated the landscape from roughly 10,000 years ago to 5,000 years ago. Then, abruptly, the climate changed, and north Africa began to dry out.

dateNov 11, 2013 in Earth Sciences
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