Season 4 Episodes8
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Ranked #2 of 8 in Season 4•+0.2 vs season avg
Huge magnetic bubbles millions of miles wide; strange invisible matter, and a death star tearing through bands of icy comets, flinging them into violent orbits.
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"Edge of the Solar System" is episode 4 of How the Universe Works season 4. It scored 8.7/10 from 116 votes, ranking #2 of 8 episodes this season (season average 8.5). It aired on August 4, 2015.