Nasa's Unexplained Files

5:00 PM to 6:00 PM

Tuesday 11 February

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 Science +1 at 5:00 PM, Tuesday 11 February. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries