Director: Ian Levison
A look is taken at exclusive NASA footage and firsthand accounts of mysterious fly objects from astronauts and scientists are presented.
S2 E1: Life In Hell
A UFO crashes in Pennsylvania. Was it a secret Soviet satellite, or something far more dangerous? On Mercury, NASA finds the impossible: frozen water.
S2 E2: Top Secret Terror
Images of Mercury reveal massive spider-like formations on its surface. Is it an odd geological formation - or something much more ominous?
S2 E3: Lethal Weapons
The show returns with more mysterious encounters, unusual discoveries and strange sightings, straight from NASA's best and brightest.
S3 E1: Pluto's Stranger Things
S3 E2: Rise Of The Planet Killer
S3 E3: A President's Close Encounter
S3 E4: The Earth Next Door
S3 E5: Curse Of The Full Moon
Two cosmonauts fight for their lives, trapped inside a capsule in a frozen lake. NASA astronomers are spooked when the full moon affects their experiments.
S3 E6: Did Earth Have Two Moons?
A starling discovery suggests the hellish clouds of Venus may be the origin of life on Earth. Plus, did the earth once have two moons?
S3 E7: Mystery Of The Invisible Planet
S3 E8: Attack Of The Thunderballs
S3 E8: Mars's Deepest Secret
S3 E10: Curse Of The Gas Giant
S3 E11: The Sun's Evil Twin
S3 E12: Secret Aliens
S3 E13: Stonehenge On Mars
S3 E14: Cia's Secret Revenge