A mystery interstellar object spotted last week by astronomers could be the oldest comet ever seen, according to scientists.

However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

In the first study of its kind, researchers at the RIKEN Center for Interdisciplinary Theoretical and Mathematical Sciences (iTHEMS) in Japan, along ...

On June 14 and 16, technicians installed solar panels onto NASA's Nancy Grace Roman Space Telescope, one of the final steps ...

Go to Settings > Safety & Emergency > Wireless Emergency Alerts (location may vary slightly depending on your phone model). Turn on Allow Alerts, and make sure both Extreme Threats and Severe Threats ...

BestReviews is reader-supported and may earn an affiliate commission. Details.

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Earth may lie in a giant cosmic void, altering our view of the universe's expansion and potentially solving the long-standing Hubble Tension mystery ...

The third object known to have entered the Solar System from interstellar space has an origin unlike either of its ...

“It’s very exciting!” Hopkins, an astrophysics graduate student at the University of Oxford, told IFLScience. “I’ve been ...

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.