Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities. These are the dwarf planets—small but mighty members of our solar system that ...

There are no confirmed exomoons, moons orbiting distant exoplanets in other solar systems. There are a few candidates, but ...

It is a question that feels like it should have a straightforward answer: how many planets are there in our solar system? Since Pluto was relegated back down to dwarf planet status, almost everyone ...

Astronomers using the W. M. Keck Observatory on Mauna Kea, Hawaiʻi, have spotted such a gruesome glimpse of stellar ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

What can white dwarf stars eating their own planets teach astronomers about planetary and solar system formation and ...

When it comes to what part of Earth is most at risk of an ISO impactor, low latitudes near the equator face the greatest risk. There's also a slightly elevated risk of impact in the Northern ...

As telescopes have become more powerful, it’s turned out our solar system is not the only game in town: There are millions of ...