NASAs Unexplained Files

Strange flying objects have been caught on NASA's cameras and astronauts have reported seeing UFOs. Some of the odd shapes and lights can be identified; others remain a mystery. We'll reveal NASA footage and interview the astronauts and scientists.

Astronaut Leroy Chao's spacewalk is interrupted by bright lights flying past. A flying saucer photographed from the Apollo capsule, dark shapes caught on camera shadowing the shuttle...the ideas are science fiction, but the incidents are science fact.

The Viking Lander may have found life on Mars. Meanwhile, how could a Starship be spotted in the Aurora Borealis? And what exactly are NASA?s mysterious Moon Pigeons?

Astronaut Leroy Chao's spacewalk is interrupted by bright lights flying past. A flying saucer photographed from the Apollo capsule, dark shapes caught on camera shadowing the shuttle...the ideas are science fiction, but the incidents are science fact.

A planet shows evidence of an Earth-like atmosphere, while a mysterious glowing light suggests the impossible: an atmosphere on the Moon. Plus, why are there blueberries on Mars?