A strange UFO sighting in Susa Valley, Italy, leads to the construction of Sacra di San Michele, and according to theorists, ...

Thousands of people have reported UFOs or alien encounters in Northern California. That number could soon go up.

A self-proclaimed time traveller claims aliens will make contact in 2028, sparking online debate. His assertions, made during ...

For instance, what if we really are being visited by aliens from other worlds and they turn out to be aggressive, violent, ...

A polarizing Harvard University astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks ...

Add Yahoo as a preferred source to see more of our stories on Google. It's World UFO Day, but questions about aliens, UFOs and what governments know about them remain. UFO researcher Jon Stewart joins ...

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's silence.

This extremely mysterious phenomenon of UFOs or UAPs inevitably touches on matters of religion, spirituality, morality, and ...

Chris Alan Evans’ short film “Hivemind Deluxe” is a sci-fi satire, but its message is very real, and discomfiting: It’s The ...

Add Yahoo as a preferred source to see more of our stories on Google. A NASA astronaut preparing for a grueling eight-month stint in orbit has revealed a plan to test for extraterrestrial life on the ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks posed by UFOs ...