Special - SCIENCE

Here's a look at three NASA astronauts who've given accounts of UFOs—Buzz Aldrin, Edgar Mitchell, and Gordon Cooper.

A sophisticated video by NASA shows a rendering of ancient Mars—a planet of blue skies and vast oceans. ...

Here's a look at prehistoric structures thought to defy the current understanding of history—the Bosnian Pyramid, Gobekli Tepe, ...

Other nations, including the Vikings, Chinese, and ancient Egyptians, may have visited the Americas hundreds of years before ...

Bimini Road has divided scientists since its discovery in 1968. Some say it was built more than 10,000 ...

Evidence exists pointing to prehistoric civilizations as advanced as our modern civilization—or perhaps more advanced, with nuclear reactors, ...

Many children seem wise beyond their years; some say things that seem to hearken back to previous lives. ...

CAVALESE, Italy—The year 1492 is one of history's most famous dates, when America was discovered by Europeans. However ...

Mysterious, intriguing, and even a little frightening, conspiracy theories of various kinds have captivated Americans for decades.

From paper to plastic and beyond. Fueled by consumers who want access to their money regardless of how ...

The first steps are being taken to create an intergalactic currency. PayPal will unveil PayPal Galactic working with ...

The stuff of science fiction sometimes becomes reality in a much shorter time than people would expect. With ...

Almost 15 years ago, PayPal set out to be a global currency—today, we are expanding our vision off ...

Netherlands UFO photos have emerged. An odd-shaped UFO in the Netherlands was photographed by a woman. It was ...

After a weeklong hearing with some of the world’s top UFO experts, a committee of former U.S. Congress ...

A former U.S. Air Force intelligence officer described his encounter with a UFO at the DC hearing on ...

The National Aviation Reporting Center on Anomalous Phenomena has documented 3,500 UFO sightings by military, commercial, and civilian ...

An anonymous former CIA official gave a video interview about extraterrestrials and what he called a cover up ...

A fighter pilot in the Peruvian Air Force was no novice when he took aim at a threatening ...

British police officers have been personally involved in at least 430 UFOs sightings, including one that was three ...

Journalist, filmmaker, and extraterrestrial researcher Linda Moulton Howe told former members of Congress about the numerous horribly mutilated ...

Tiny 'alien' skeleton: A tiny being purported to be an alien is actually a human, according to a ...

Researchers and specialists on extraterrestrial encounters and sightings joined former members of Congress Monday to begin a week ...

WASHINGTON-A former U.S. Air Force officer described in detail a spaceship he saw while investigating an incident near ...

WASHINGTON—An unprecedented gathering of experts and witnesses will hold a citizen hearing about extraterrestrials engaging the human race, ...

Did giants really exist?

In June 2002, a 270-million-year-old "hidden words stone" was discovered in Guizhou.