NASA's Unexplained Files: Season 3

Pluto Under Pressure

42min - Lost tapes reveal that Apollo astronauts heard unexplained transmissions on the far side of the moon, an amateur astronomer spots a strange disturbance in Martian atmosphere and an unidentified object in Earth orbit starts stalking Russian spacecraft.

Return of the Moon Bugs

42min - Apollo 12 astronauts bring back something alive from the moon; NASA tracks an asteroid heading towards Earth but make an incredible discovery.

Rise of the Ice Creatures

42min - Neil Armstrong goes into an unexplained spin. He needs to figure out what's causing it, or he faces certain death. An Apollo 17 photo seems to show a US military outpost on the moon and there could there be alien life swimming in the oceans of Jupiter's moons.

Ghosts on a Comet

42min - When a Chinese moon rover breaks down, a NASA scientist points to a mysterious material that seemed to sabotage the Apollo missions decades earlier. The Rosetta spacecraft finds a comet that appears to be singing.

The Moon that Disappeared

42min - Recently discovered documents reveal NASA's secret plan B for failure of the first moon landing, a Soyuz capsule carrying NASA astronaut Peggy Whitson back to Earth vanishes without explanation and NASA's Cassini mission unravels a 300-year-old.

Curse of the Red Planet

42min - Three cosmonauts die mysteriously as they re-enter Earth's atmosphere and NASA needs to know why, a declassified document reveals a CIA plan to use a space disaster as a cover to start World War III and a NASA rover discovers clues that help solve a murder.

Red Storm Rising

42min - Two astronauts trapped in the vacuum of space face an agonizing death; the first close up images of Pluto reveal an alien landscape that shocks scientists.

Attack of the Thunderballs

42min - Astronauts are evacuated when a mystery object is discovered hurtling towards the ISS, a NASA secret agent goes undercover to recover missing moon rocks and scientists struggle to find answers when they find a huge void at the edge of the solar system.

Episode 9: Pluto's Stranger Things

Episode 10: Rise Of The Planet Killer

El gemelo malvado del Sol

Episode 12: Secret Aliens

Episode 13: Stonehenge On Mars

Episode 14: CIA's Secret Revenge

El extraño secreto de la Luna

La estrella de Saturno