News tagged with northern hemisphere

STAR TRAK for March 2012

Mars was opposite the sun in our sky on March 3, rising at sunset and remaining visible all night. If you looked to the east as the sky darkened, you could see the Red Planet gleaming at its biggest and brightest, which happens ...

dateMar 06, 2012 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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Cool summer of 2013 boosted Arctic sea ice

The volume of Arctic sea ice increased by a third after the summer of 2013 as the unusually cool air temperatures prevented the ice from melting, according to UCL and University of Leeds scientists. This suggests that the ...

dateJul 20, 2015 in Earth Sciences
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