It’s Okay to Be Smart

The 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: 03/06/13

Rating: NR

Problems Playing Video?