Be Smart

The Science and Beauty of Auroras

Season 1 Episode 3 | 4m 46s

Space might seem like an empty place, but the area surrounding Earth is constantly being bombarded by waves of charged particles released by the Sun: The solar wind. Luckily, thanks to Earth's swirling, molten core (and the magnetic field it provides), we are protected from this planet-sterilizing onslaught like an invisible force field. The visual result? The Auroras.

Aired: 02/25/13

Rating: NR


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