Scientists have identified new clues that could help astronomers spot one of the most famous hypothetical alien ...

Some of the coldest objects currently listed as stars in the Milky Way may not be stars at all. A new study by astrophysicist ...

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

The Pentagon has released a fourth batch of newly declassified UFO videos, including footage showing a six-pointed ...

A Soviet astronomer in the 1960s proposed a scale to classify hypothetical alien civilizations. Here’s why the framework is ...

, July 10 -- Scientists searching for signs of intelligent extraterrestrial life say some of the coldest objects in the Milky ...

Passenger partially sucked out of shattered window on flight; parents of Nolan Wells speak to ABC News in their search for ...

A Florida resident captured photos of the "space jellyfish" effect after a recent SpaceX rocket launch from the other side of the state. The phenomenon is caused by sunlight illuminating a rocket's ...

Smithsonian Institution Lonnie Bunch speaks during an event at the Smithsonian National Museum of American History on ...

Smithsonian Secretary Lonnie Bunch disputed the scathing July 4 report released by the White House, which accused the ...

Smithsonian Secretary Lonnie Bunch disputed the scathing July 4 report released by the White House, which accused the National Museum of American History and its leaders of presen ...