NASA's Unexplained Files Season 3 Episode 1 - Pluto Under Pressure

Airdate: 2015-Mar-02

Episode summary:

The Season 2 premiere examines an alleged UFO crash in Pennsylvania that may have been a Soviet satellite; whether Mercury houses life; and a skyscraper-sized shadow on the surface of Mars' largest moon.

About NASA's Unexplained Files series:

On NASA’s Unexplained Files, strange flying objects have been caught on NASA’s cameras and astronauts have reported seeing UFOs. Some o...Show more >