Several UFO stories appeared in the news this week, many miles and years apart. Yet they share a possible similar explanation: Earth-based remote-controlled devices.

Video capturing what is said to be a UFO over Brazil is circling the Internet Wednesday.

If WikiLeaks didn’t already have the attention of the world’s conspiracy theorists, its founder Julian Assange grabbed the X-files crowd by their tin-foil helmet antennae in December...

Thousands of dead turtle doves rained down on roofs and cars in an Italian town in the latest in a growing spate of mass animal deaths across the globe.

Operation Garden Plot is a strategy developed by the U.S. Military and National Guard to respond to any major domestic civil disturbances that may occur within the United States.

The radar picked up an object of considerable size, flying from Rio Gallegos toward the north. The device is unable to determine its point of origin. But it flies without stopping.

Pentagon Can't Explain "Missile" off California

Conspiracy theorists have worked themselves up into a lather over a mysterious blotch visible in the first black and white photographs taken from NASA's new Curiosity rover as it landed on Mars.

Nine Eleven. 9-11. 9/11. No matter how you type it – those two numbers put together invokes an array of emotions.

The UFO footage below comes from the city of Limeira in Brazil.

A UFO around the sun might be linked to the December 21, 2012 doomsday...

More than 8,500 pages of Ministry of Defence papers involving UFO investigations and sightings will be available online.

The ancient Martian crater where the Curiosity rover landed looks strikingly similar to the Mojave Desert in California with its looming mountains and hanging haze, scientists said Wednesday.

Earth could be getting a second sun, at least temporarily.