News tagged with upper atmosphere

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Perseid fireballs

In astronomy, there's nothing quite like a bright meteor streaking across the glittering canopy of a moonless night sky. The unexpected flash of light adds a dash of magic to an ordinary walk under the stars.

dateJul 30, 2013 in Space Exploration
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Radio waves carry news of climate change

The ionosphere, one of the regions of the upper atmosphere, plays an important role in global communications. Ionized by solar radiation, this electricity-rich region is used for the transmission of long ...

dateJul 30, 2013 in Earth Sciences
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The Sun's Sneaky Variability

Every 11 years, the sun undergoes a furious upheaval. Dark sunspots burst forth from beneath the sun's surface. Explosions as powerful as a billion atomic bombs spark intense flares of high-energy radiation. ...

dateOct 28, 2009 in Space Exploration
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ESA SWARMing Earth's magnetic field

ESA's three-satellite Swarm constellation was lofted into a near-polar orbit by a Russian Rockot launcher this afternoon. For four years, it will monitor Earth's magnetic field, from the depth of our planet's ...

dateNov 25, 2013 in Space Exploration
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Viewing crescent Mars

(Phys.org)—The sight of the crescent Moon hanging in the sky above Earth is a familiar one, but this image taken by ESA's Rosetta spacecraft as it passed by the Red Planet in February 2007 captures the ...

dateOct 02, 2012 in Space Exploration
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