An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

It would be understandable if you stopped thinking as much about Pluto after it was “demoted” from being considered one of the nine planets sharing the Earth’s solar system to being classified as a ...

Since Pluto remains in the sun’s orbit, it should be considered a planet due to the fact that it is still a part of the solar system. And since Pluto is still hanging on at the end of the system, it ...

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

Webb Telescope finds crystalline water ice around star HD 181327. This discovery could reveal how icy bodies contribute to ...

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 ...

Astronomers have uncovered a planetary system that challenges conventional theories of planet formation. The system likely includes a rocky planet that formed beyond the orbits of its gaseous ...

In a conventional system like our own, rocky planets such as Mercury, Venus, Earth, and Mars orbit closest to the host star. Farther out, gas giants ...

Jupiter-like planet 8 UMi b, named Halla, orbits its host red giant star Baekdu closely. The red giant's merger with a white ...

Just 40 light-years away lies one of the most remarkable planetary systems ever discovered: TRAPPIST-1, a small red dwarf ...

Research adds weight to theory Arrokoth’s two lobes produced by gravitational collapse – and reveals process ...