News tagged with upper atmosphere

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What happened to Mars? A planetary mystery

Billions of years ago when the planets of our solar system were still young, Mars was a very different world. Liquid water flowed in long rivers that emptied into lakes and shallow seas. A thick atmosphere ...

Nov 13, 2013
4.8 / 5 (33) 21 | with audio podcast

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 ...

Jul 30, 2013
4 / 5 (8) 1

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.

Jul 30, 2013
5 / 5 (2) 0