The Aristarchus Enigma: Apollo 11 astronauts see illumination coming from the Aristarchus Crater.
Martian Space Station: Mars moon Phobos may be hollow, that some believe may be a space station.
Curiosity's Companions: After Curiosity lands on Mars one of the first things it sees are object apparently leaving the planet.
Alien Star Drive: When an X-Ray signature is seen coming from a nearby Galactic Clusters may be an alien's nuclear drive.
Intelligent Lighting: Lightning appears to flash in sequence between storms that are far apart.
Mir Mystery: Objects buzz the Mir Space Station during the shuttle docking procedure. Many believe something has been trying to sabotage the station.
Moon Watcher: Photos taken by the Apollo 17 astronauts seem to show an object apparently watching their activities.
Kuiper Belt Intruder: More than 90% of the material that should be in the Kuiper Belt is not there.
Aired: 24 Jul 2014