Nasa's Unexplained Files

3:00 PM to 4:00 PM

Wednesday 6 August

Mars's Deepest Secret

Season 4 Episode 8 of 8

An account of how a malfunction on the ISS threatens to poison the crew with a deadly gas, and a startling image taken by a Nasa probe points to evidence of life on Mars

Nasa's Unexplained Files airs on Discovery History +1 at 3:00 PM, Wednesday 6 August. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries