Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

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

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

Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar ...

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

Aliens exist – they just haven't visited Earth, a NASA veteran has claimed. Dr Gentry Lee has worked at the US space agency since 1968, when he first got involved with the Viking mission to Mars. He ...

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

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

A new study outlines a potential mission to intercept interstellar comet 3I/ATLAS, but the journey could take decades due to ...

Two research papers propose extreme gravitational slingshot trajectories that could fling a spacecraft onto a path to catch up with 3I/ATLAS, which NASA and the European Space Agency describe as an ...