Learn what planet rains molten iron and which planet has two moons like Tatooine in Star Wars.

Scientists found a bizarre new planet named Enaiposha, unlike any in our solar system. Learn why it's a mystery and how it’s ...

This is particularly puzzling, as a vast majority of meteorites can be traced to some well-known parent body—whether that be ...

Gonggong is a dwarf planet and a member of the scattered disc beyond Neptune. As of 2019, its distance from the Sun is 88 AU, and it is the sixth-farthest known Solar System object.

Hycean worlds, which are a possible kind of exoplanet with deep oceans surrounded by a thick envelope of hydrogen, could ...

The James Webb Space Telescope has directly observed the key chemical of carbon dioxide in planets outside of our solar ...

Astronomers have discovered the smallest dwarf galaxy ever seen. It is a mystery how the satellite galaxy of Andromeda ...

Astronomers have identified a quartet of small rocky planets orbiting Barnard's star - one of our closest stellar neighbors - ...

A new model that incorporates data gathered by the JWST could help scientists understand the composition and mass of objects ...

A new study is challenging the science of the formation of sub-Neptunian planets, which are the most common in the Milkey Way ...

NASA discovers four sub-Earth exoplanets orbiting Barnard's Star after a century-long search. Find out how this changes the ...