In the cold, dark outskirts of planetary systems far beyond the reach of the known planets, mysterious gas giants and ...

Astronomers find evidence of a possible ninth planet beyond Neptune, reigniting the debate about the formation of the Solar ...

WMO report predicts global temperatures to exceed 1.5°C, urging climate action to avoid severe impacts on ecosystems.

Earth has four seasons, but do other planets in our solar system also have hot summer days and cold winter nights?

Earth’s violent collision with a protoplanet may have given birth to the Moon. Discover the giant-impact theory and the ...

The curious minds at What If detail the terrifying findings scientists made on a planet eerily similar to Earth.

When the planet first formed about 4.5 billion years ago, most of these precious metals sank into the metallic core, more than 3,000 kilometers beneath the surface.

Flower Mound, Texas, was named one of the best places to live in the U.S. The James Webb Space Telescope has peered into the ...

A detailed isotopic study of Hawaiian volcanic rocks reveals signatures of core‑derived material, suggesting the core and ...

A team of astronomers believe they may have discovered a new dwarf planet—just like Pluto—on the edge of our solar system.

At the very edge of our solar system, beyond the grasp of Neptune and even past the icy sprawl of Pluto’s domain, a new ...