If an antimatter meteor came into our solar system, we’d definitely know about it, says one reader, especially if it hit the ...

In the heart of the Milky Way is a black hole millions of times more massive than our sun, but does that mean we're destined ...

If you've ever wondered why we are here, then you can thank Jupiter for part of the answer. A new study from Rice University ...

Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds.

A mysterious visitor from beyond our solar system is making a rare appearance: Comet 3i/ATLAS is an interstellar comet, ...

The space object, named Chiron, is believed to be a piece of rock measuring a whopping 130 miles wide at its broadest point - ...

Modern astronomy is giving us unprecedented views of the asteroids, comets, and other small bodies that litter our cosmic ...

When planetary rings are mentioned, the image of Saturn immediately comes to mind. However, this celestial feature is not ...

Guest: Professor Dagomar Degroot, environmental historian at Georgetown University and author of Ripples on the Cosmic Ocean: ...

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

Far from Earth, drifting between the stars, lies a quiet ocean of carbon. Astronomers call it the interstellar medium, a vast ...