A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

The National Aeronautics and Space Administration has confirmed an interstellar object is passing through our solar system.

At the time, astronomer Jerry Ehman spotted the highly unusual outburst in printed out records, annotating the major radio ...

Rogue planet outside our solar system expanding rapidly in huge ‘growth spurt’ - Free-floating planet is consuming gas and ...

NASA is tracking an object that is entering the solar system at approximately 245,000 km/h. This interstellar visitor is ...

There are quite a few other places we might find life in the solar system, including dwarf planets like Ceres. Ceres is ...

The asteroid belt may seem permanent, but it is far from static. Its slow decline reveals a more violent past when more ...

Astronomers found that interstellar object 3I/ATLAS shows an "extreme abundance ratio" of nickel and iron in its gas plume.

Two recent studies used seismic data from NASA’s retired InSight mission to shed light on what lies beneath Mars’ surface and what it means for the planet’s history The spacecraft will map the ...

3I/ATLAS, an interstellar object currently zipping through the solar system, is capturing the attention of astronomers, the ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...