Harvard astronomer Avi Loeb says interstellar object 3I/ATLAS could be firing its "thrusters" to leave the solar system.

For decades, U.S. military pilots, radar operators, and everyday Americans have reported mysterious objects in the skies — ...

New research suggests that the holes were the site of an ancient marketplace, and Inca rulers may have used them as a ...

Viral video of the 3I/ATLAS interstellar comet has reignited alien theories online, but scientists confirm the object’s ...

A decade after a mysterious crater appeared in Siberia’s frozen ground, a team of Russian scientists braved subzero ...

In a warehouse more than 1,500 kilometers (900 miles) from Ukraine’s capital, workers in northern Denmark painstakingly piece together anti-drone devices. Some of the ...

A Space Odyssey and Gattaca are among the best examples of 20th-century hard sci-fi, grounding their plots in logic and plausibility.

Scientists discover hidden cavities inside Egypt’s Menkaure Pyramid, fuelling theories of a secret 4,500-year-old entrance.

Harvard astronomer Avi Loeb suggests the interstellar object 3I/ATLAS could be an alien spacecraft, using thrusters to accelerate its exit from our solar system.

In a warehouse more than 1,500 kilometers (900 miles) from Ukraine's capital, workers in northern Denmark painstakingly piece ...

In this thrilling video, we delve into the epic showdown between two iconic extraterrestrial species: Alien vs. Predator.

This low-effort trick might buy a little more time for the the AirPods that are facing mysterious ‘amber light’ failure.