The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's ...

You might think of our solar system as fixed and unchanging. But that doesn't take into account the constant discoveries ...

Strange objects from other star systems are visiting our solar system. These interstellar visitors are scientifically valuable but disappear quickly. Scientists are calling for a global response ...

Add Yahoo as a preferred source to see more of our stories on Google. But now a fourth and much larger object has been spotted entering the solar system, and the scientific community is rushing to ...

Microscopic crystals extracted from meteorites could help settle a debate about the birth of our patch of the Milky Way.

Add Yahoo as a preferred source to see more of our stories on Google. The interstellar comet, originally called A11pl3Z and now known as 3I/Atlas, was first reported by the Asteroid Terrestrial-impact ...

Explore the Solar System in a way that transcends the average science project. This video showcases the relative sizes of the ...

In the distant reaches of the solar system are many icy objects that resemble snowmen. Now, a new study reveals the simple ...

Astronomers produced the most complete map of the center of the Milky Way, which can provide insight into how stars and planets are formed.

A group of astronomers has found a solar system 116 light-years from Earth that seems to challenge current theories about how ...

On May 21, the International Astronomical Union’s Minor Planet Center announced the discovery of 2017 OF 201, which, because of its distance beyond Neptune, is classified as a trans-Neptunian object ...

An artist's impression shows the "inside out" planetary system around the star LHS 1903. - ESA An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, ...