What was originally thought to be a planet orbiting the Fomalhaut star was probably just the fallout of a wild collision.

A four-planet system reveals remarkable insights about how planets form and how they change during their lifetime.

A free-floating planet drifting through space is being closely followed by scientists who are managing to find out more about ...

Stars and planets are inextricably linked. They form together and stars shape the fate of planets. Stars create the dusty ...

This composite image was weeks in the making, as Horálek’s two "crossings" happened months apart. Mars traced its path ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

New research tracks young planets around a nearby star, showing how large, gas-rich worlds shrink over time to become the most common planets in the galaxy ...

There are a couple of ways that scientists can date planets, so which planets formed first in our solar system? When you purchase through links on our site, we may earn an affiliate commission. Here’s ...

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...

In a zesty new discovery, scientists have unearthed a strange lemon-shaped exoplanet. It is unlike one we have seen before, ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...