Nasa's Unexplained Files
Lethal Weapons
Season 2 Episode 3 of 8
How did pictures from the Hubble telescope make the comet of the century look like an alien spacecraft? Has earth already been invaded by alien organisms?
Nasa's Unexplained Files airs on Discovery History +1 at 7:00 AM, Thursday 10 October. (Subtitles.)
Topics
Education ➝ Science ➝ Factual Topics
Unexplained ➝ Mysteries