Planet 9 sits at the edge of scientific imagination, promising either an epic expansion of the Solar System or a lesson in ...

I/ATLAS is a newly detected interstellar object that entered the solar system from outside our stellar neighborhood, ...

NASA/ESA/CSA/Anne-Marie Lagrange (CNRS, UGA)/Mahdi Zamani (ESA/Webb) Located around 111 light years away from our solar system, and thus being quite close in space ...

Astronomers have discovered a brand-new type of planet outside our solar system that, even in its infancy, is already bigger than Jupiter. What's more, the find represents the first clear detection of ...

This year, astronomers discovered more than 100 previously unknown moons in our own solar system. There may be many more yet to be discovered, and cataloguing them could help us better understand how ...