Interstellar comet 3I/ATLAS has steadily been making its exit ever since it had a rendezvous at the end of October with the sun.

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

Known as the R-36Orb inside the military, the weapon was designed by Soviet military to bypass American defenses.

A newly detected X-ray transient may reveal the first direct evidence of an intermediate-mass black hole consuming a white dwarf. A newly observed cosmic outburst is giving astronomers a rare glimpse ...

If you've been following exoplanet research over the last couple of years, you've definitely heard of K2-18b. Located 124 ...

Defense Secretary Pete Hegseth said the Pentagon is “working” on identifying and releasing government files related to UFOs and extraterrestrial life following President Donald Trump’s directive.

Superman has one of the greatest rogues’ galleries in comic book history, and these are the most powerful villains he’s ever faced.

With the release, the American public could learn what, if anything, the government has documented about the unexplained ...

Defense Secretary Pete Hegseth offered an update on the Trump administration’s plans to release government files related to extraterrestrial life and unidentified flying objects (UFOs).