NASA's Unexplained Files S4, E3

A look is taken at exclusive NASA footage and firsthand accounts of mysterious fly objects from astronauts and scientists are presented.

Cast:Christopher Orwoll , Erik Dellums , Bill Birnes , James E. Oberg , Marc D'Antonio , Nick Pope , Seth Shostak , Matt Genge , Amy Shira Teitel , Peter H. Schultz , Leroy Chiao , Stanton Friedman , Kevin R. Grazier , Hakeem Oluseyi , Laurence Garvie , Pascal Lee , Mike Capps , Kevin H. Baines