NASA's Unexplained Files

Season 4 Episode 7: Mystery of the Invisible Planet

A probe carrying a message to aliens malfunctions as it enters deep space. A NASA mission goes disastrously wrong when an imposter breaches Mission Control. Astronomers may have found an invisible planet around a distant star.

Genre:

Documentary, Talk, Mystery

Seasons:

6

Episodes:

47

Quality:

HD

Status:

Returning Series

First Air:

2012

IMDb:

7.1