NASA's Unexplained Files
An astronomer records an unusual radio signal from beyond the solar system.
An astronomer records an unusual radio signal from beyond the solar system.
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Experts raise questions when NASA begins a strange experiment to communicate with dolphins.
After NASA's New Horizons spacecraft flies by Pluto, it encounters a strange alien world.
Astronomers investigate the possible danger of a black hole speeding through the Milky Way.
A former Area 51 insider alleges that the Roswell UFO incident was a Soviet conspiracy.
NASA discovers something strange on Saturn's biggest moon; disturbing evidence.
An orbiting object looks like the Death Star; the death of Yuri Gagarin; a satellite vanishes.
Something strange on the lunar surface; phenomenon responsible for mass deaths.
When the Soviet Union unveils its own space shuttle, the CIA hatches a secret revenge plot.
A NASA probe captures an image of a familiar structure on Mars' surface.
An astronomer records an unusual radio signal from beyond the solar system.
A photograph depicts two suns; Ghostly white swirls on the moon's surface baffle NASA scientists.
The Curiosity Rover finds something strange on Mars; detectives turn to NASA for help.
President Kennedy demands that the CIA share its UFO data with NASA; coded alien message on Mars.
Soviet photos of the moon are intercepted by the CIA; a malfunction aboard the ISS.
A probe carrying a message for aliens malfunctions without cause as it enters deep space.
A theory of Earth's abiogenesis may have started in the clouds of Venus.
Cosmonauts are trapped in a capsule in a frozen lake; a NASA scientist investigates the Hindenburg.
Astronomers notice a planet in Earth's vicinity capable of supporting life.
The discovery of geysers on a moon; NASA's mission to detect life.
A Mars mission captures an image of a strange structure on the planet.
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