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There is no Next Episode of NASA's Unexplained Files planned.
Lost tapes show that Apollo astronauts heard unexplainedtransmissions on the far side of the moon; an amateur astronomer findsan odd disturbance in Martian atmosphere; an unidentified object inEarth orbit starts stalking Russian spacecraft.
Apollo 12 astronauts bring back something alive from the moon and NASAtrack an asteroid heading towards Earth but make a shocking discovery:it's not an asteroid, but an object that's artificial in nature.
Neil Armstrong goes into an unexplainedspin. He needs to figure out what's causing it, or he faces certaindeath. An Apollo 17 photo seems to show a US military outpost on theMoon. and could there be alien life swimming in the oceans of Jupiter'smoons.
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.
Recently discovered documents show NASA's secret plan B for failure ofthe first moon landing; a Soyuz capsule carrying NASA astronaut PeggyWhitson back to Earth goes missing; NASA's Cassini mission unravels athree hundred year old.
Three cosmonauts die mysteriously as they re-enter Earth's atmosphereand NASA needs to know why, a declassified document reveals a CIA planto use a space disaster as a cover to start World War 3 and a NASArover discovers clues that help solve a murder.
Two astronauts trapped in the vacuum of space face a horrible death;the first close up images of Pluto show an alien landscape; residentsof Houston struggle to explain videos of unidentified flying lightscaptured above their city at night.
Strange sightings on Mars, including possible pillars of fire and signs of life.