Ever since Pluto was demoted from planet status, astronomers believe a real Planet Nine exists in the solar system ...

Discover the Sun’s incredible heat, its layers, and what fuels it. Explore ExtremeTech’s in-depth article and get closer to ...

Pluto and other large bodies in the Kuiper Belt are surprisingly rich in rock rather than ice. It may be because the early ...

ESA’s Solar Orbiter, a collaboration with NASA, has delivered its most detailed images yet of the Sun’s surface, offering a ...

We're showing that, everywhere we look now, there was some sort of magnetic field that was responsible for bringing mass to ...

From the center of the solar system, rages a powerful wind. Sent by the Sun, this wind whips at speeds exceeding one million ...

A 3D map of our cosmic neighborhood has revealed hot and cold regions as well as an "escape tunnel" from our local bubble.

Some minerals in lava could suggest water is nearby.

Earth, between sweltering Venus and frozen Mars, formed and orbits within a band where water could persist in solid, liquid, and gaseous phases. Mars had surface water, but not as much as Earth, and ...

The Max Planck Institute for Extraterrestrial Physics (MPE) researchers used data from the eROSITA All-Sky Survey.

The research suggests this tunnel could act as a passage through the gas, potentially linking our solar system to other stars ...