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

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

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

On Saturday (Jan. 10), for example, we will see three satellites on one side of Jupiter (going outward from the planet: Ganymede, Io and Europa ), while the fourth ( Callisto) remains all by itself on ...

How does a star affect the makeup of its planets? And what does this mean for the habitability of distant worlds? Carnegie's ...

NASA's SPHEREx telescope unveiled its first full-sky map of the universe, combining more than 100 infrared observations into ...

The galaxy cluster appears hotter and more mature than it should for its young age, challenging what we think we know about ...

The discovery of thousands more galaxies with stars ringing their main disks could help astronomers study galactic evolution ...