Nasa's Unexplained Files

1:00 PM to 2:00 PM

Wednesday 17 December

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 at 1:00 PM, Wednesday 17 December. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries