Scientists identify exoplanet candidate HD 137010 b, a possible Earth-size world orbiting a Sun-like star 146 light-years away ...

The first bubble of hot gas seen around another star has been spotted around the "Moth," just 117 light-years away.

The UFO Watchtower in Center, Colorado, is exactly that kind of place, a delightfully bizarre roadside attraction that takes ...

Being able to spot the Earth, let alone any signs of life on our planet, would require an enormous telescope from 66 million ...

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

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

Astronomers used the VLA and MeerKAT radio telescopes to search the Hycean exoplanet K2-18b for alien technosignatures, ...

President Donald Trump wrote in a social media post this past week that he would order release of the federal government’s ...

On Thursday the U.S. president ordered the release of federal files related to UFOs and aliens, although no evidence of ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

Planet K2-18b, an apparent water world 124 light years away, has been seen as a promising location in the search for aliens, ...

We may not have found any definitive proof of extraterrestrial life just yet, despite plenty of hope among scientists. But if we were to ever come to an answer in the form of alien biology or ...