Detection of sulfur in a distant star system gives researchers new insight into planet formation ...

Gas giants possibly developed slowly in the solar system. They developed cores layer by layer within a disk of ice and dust ...

Astronomers have finally figured out how the most common types of planets in our galaxy are formed—by watching a set of baby planets grow up in real time. These worlds, found in a young star system ...

The textbook picture of how planets form—serene, flat disks of cosmic dust—has just received a significant cosmic twist. Subscribe to our newsletter for the latest sci-tech news updates. New research, ...

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune orbit most stars. Oddly, our sun lacks such a planet. That's been a source ...