Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

The planets are visible throughout February, "but they’ll be lined up best toward the end of the month,” NASA says.

Scientists have identified a rocky outer planet in a system where a gas giant was expected. The discovery challenges ...

Yes, there will be six planets above the horizon on February 28, 2026. No you won't be able to see them with the naked eye.

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...

A young star called V1298 Tau is giving astronomers a front-row seat to the birth of the galaxy’s most common planets. Four massive but extremely low-density worlds orbiting the star appear to be ...

A planetary system 116 light-years from Earth has a peculiar pattern. It could flip the script on how planets form, scientists say.

By Will Dunham WASHINGTON, Feb 14 (Reuters) - Astronomers have observed a planetary system that challenges current planet formation theories, with a rocky planet that formed beyond the orbits of its ...

The best “planet parade” of the year puts Venus, Jupiter, and more on display right after sunset—and you can see most of them with the naked eye.

A rocky exoplanet in the LHS 1903 system defies planet formation models, hinting that gravitational upheaval reshaped the red dwarf’s four worlds.

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

Since the 1990s, scientists have discovered approximately 6,100 planets outside our solar system, called exoplanets.