The majority of stars in our galaxy are home to planets. The most abundant are the sub-Neptunes, planets between the size of Earth and Neptune. Calculating their density poses a problem for scientists ...

A model of Neptune showing depths where the newly discovered, body-centered-cubic superionic Ice XIX could exist. It may explain Neptune’s multi-polar magnetic field (purple) due to increased ...

TEMPE, Ariz. a Quick: What’s the order of the planets in the solar system? Need a little help? Maybe the following mnemonic rings a bell: “My Very Educated Mother Just Served Up Nine Pizzas.” It’s ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Space-based observatories such as the ...

NASA's Transiting Exoplanet Survey Satellite (TESS) has made an exciting discovery, revealing a new hot and bloated exoplanet known as TOI-2498 b. This celestial object, categorized as a ...

The New Horizons spacecraft will take images of the ice giants from "behind." NASA is asking amateur astronomers to help the agency study the ice giants Uranus and Neptune. Next month, NASA will be ...