Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

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 dubbed ...

Astronomers have discovered 28 new planets outside our solar system in the past year and say the results are just the tip of the iceberg as planet-hunting technology becomes more advanced. The new ...

In order to discover 2012 VP113, astronomers took three images of the night sky, each about 2 hours apart, and combined them into one. The first image was artificially colored red, the second green ...

3I/ATLAS, believed to have originated from outside our solar system, was first detected in July 2025 by the ATLAS survey telescope. Scientists recreated Martian gullies in a lab and found they were ...

A long-lost planet that helped create the Moon may have formed much closer to the Sun than scientists once thought, according to new research. Scientists have discovered that Theia, the ancient planet ...