Nasa's Unexplained Files

2:00 PM to 3:00 PM

Monday 23 June

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 at 2:00 PM, Monday 23 June. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries