The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's observations.

Those concerned that 3I/ATLAS' arrival to our solar system meant that some sort of alien invasion was imminent can breathe a sigh of relief. And they have the evidence to prove it. To be clear, the ...

Documents might help scientists shed light on unexplained phenomena and government secrets, experts said.

NASA is quietly turning a long‑range dream into hardware, backing a suite of technologies for a so‑called “Super Hubble” that would put the search for alien life at the center of its next flagship ...

"He gave classified information, he's not supposed to be doing that," Trump told reporters Feb. 19 in discussing Obama's ...