An Exoplanet Home to Metal Aliens? | NASA's Unexplained Files

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 world.

Stream Full Episodes of NASA's Unexplained Files:
https://www.discoveryplus.com/....show/nasas-unexplain

Subscribe to Science Channel:
http://bit.ly/SubscribeScience

Like us on Facebook:
https://www.facebook.com/ScienceChannel

Follow us on Twitter:
https://twitter.com/ScienceChannel

Follow us on Instagram:
https://www.instagram.com/ScienceChannel/