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

For the better part of a century, we believed there were nine planets in our solar system, with Pluto being the farthest from ...

A decades-old cosmic mystery may finally be solved. Scientists now suspect that the strange X-ray glow from a distant white ...

Why was Pluto reclassified as a dwarf planet? One might think that it’s purely a matter of size. Mercury, the smallest of the ...

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

Scientists estimate there are ~1 septillion (1 followed by 24 zeros) planets in the observable universe. This figure is based ...

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

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

How the photoreal CG dwarves compare with the characters from "The Jungle Book," "The Lion King," "Mufasa," and more.

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

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...