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Now Playing
NASA's Unexplained Files

Alien Death Ray

Season 1 Episode 3
The Viking Lander may have found life on Mars, so why don’t we know about it? What is the most destructive force in the universe? How could a Starship be spotted in the Aurora Borealis? And what are NASA’s mysterious Moon Pigeons?
  • 44 min
  • TV-PG
  • Premiered 03/06/2014