NASA's Unexplained Files

S02E02 Top Secret Terror

Did we really land on the Moon? Recent images from Mercury showcase gigantic, spider-like structures on its surface, raising questions about their origin—are they natural formations or something more sinister? Meanwhile, a covert Space Shuttle mission encounters a critical crisis, leaving many to wonder about its true objectives. What was the shuttle sent to accomplish, and what secrets lie behind its near-catastrophic journey?