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

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

Leonardo Testi and team investigate the initial conditions for planet formation in this special astronomy focus ...

Astronomers have spotted a lonely world roughly the size and mass of Saturn, drifting through the Milky Way without a star to ...

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

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

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

Astronomers at the Center for Astrophysics | Harvard & Smithsonian have captured what may be the biggest planet-forming disk ...

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 ...

Until now, researchers have struggled to understand where these planets actually come from. Now, however, researchers have ...

Around the bright star Fomalhaut, astronomers spotted glowing clouds of debris left behind by colossal collisions between ...