Nasa's Unexplained Files

3:00 PM to 4:00 PM

Thursday 18 September

Mystery of the Invisible Planet

Season 4 of 8

Interviews with astronauts and scientists shed light on the many mysterious flying objects that have been caught on Nasa's cameras, and explore the idea of extraterrestrial life

Nasa's Unexplained Files airs on Discovery History +1 at 3:00 PM, Thursday 18 September. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries