Nasa's Unexplained Files

1:00 PM to 2:00 PM

Friday 31 October

Did Earth Have Two Moons?

Season 4 of 8

A starling discovery suggests the toxic clouds of Venus could be the origin of life on Earth. Plus, an insight into theories that Earth once had two moons

Nasa's Unexplained Files airs on Discovery History at 1:00 PM, Friday 31 October. (Subtitles.)

Topics

Education ➝ Science ➝ Factual Topics

Unexplained ➝ Mysteries