Among the most persistent claims is that extraterrestrials assisted in the construction of ancient civilizations.

The "Nazca mummies" were discovered in Peru in 2015 and, due to certain peculiarities (size, shape, three fingers on each hand), were initially presented as possible extraterrestrial mummies. Various ...

If life exists elsewhere in the universe, researchers at the University of Washington are finding the clues on Earth to help ...

Donald Trump’s pledge to release official files relating to UFOs has intrigued conspiracy theorists who suspect the US government has hidden evidence of alien activity on Earth.

There were schools of thought in Ancient Greece that speculated about extraterrestrial life, in trying to answer questions ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." What even these relics can’t answer, however, is how their common ancestor came into being. Neither can ...

Explore America's fascination with aliens and UFOs, revealing political implications, historical encounters, and ongoing debates about extraterrestrial life.

Physicist Paul Davies looks back at the past century of quantum mechanics—the most disruptive theory in the history of modern science.

Life on Earth may not have started here at all. A scientist says alien intervention is unlikely but still possible, reshaping the debate on our true origins.

The old World history textbook I used in school specifically stated something like, “Some people, looking at the Pyramids of ...

By leaving the complex world-bulidng of the Cosmere behind, Sanderson pens more character-driven mysteries focused on simulation theory and time trave ...