S6 E7
5/23/19
Planet of the Metal Aliens
Experts investigate if a nearby exoplanet could be the home to an alien civilization of strange, metallic monsters after a new discovery confirms that life can thrive on such a strange world.
Seasons
Episode
1
Saturn's Moon Monsters
Episode
2
Aliens vs. Stalin at Area 51
Episode
3
The Black Hole Next Door
Episode
4
Pluto's Evil Twin
Episode
5
Aliens in the Amazon
Episode
6
Secrets of the Alien Signals
Episode
7
Planet of the Metal Aliens
Episode
8