Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new ...

In the remote outer reaches of planetary systems, far beyond the orbit of known planets, enormous and mysterious worlds ...

The icy giant is more than 10 times the size of any known comet, according to the National Radio Astronomy Observatory.

Detecting exoplanets is one thing, but imaging them is another thing entirely. Astronomers can detect them by the way they ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

If our solar system seems stable, it's because our short lifespans make it seem that way. Earth revolves, night follows day, ...

The Vera C. Rubin Observatory is poised to discover billions of new astronomical objects, revolutionizing understanding of ...

Researchers now appreciate that gas planets are more complex than first thought. New findings have implications for our ...

The sun rises from the east, and sets in the west - this is a well-established fact for the longest time, and this is due to ...

For the first time ever, the James Webb Space Telescope (JWST) has imaged an exoplanet. I know what you’re thinking: “JWST ...

Wide-orbit planets are fairly common according to the study, and there's a good chance we have one of our own.