A bizarre planet defies cosmic norms: scientists have confirmed a giant planet orbiting in reverse around one star in a close binary system—an arrangement previously thought impossible. Using advanced ...

Astronomers may have finally worked out how planets between the size of Earth and Neptune – which aren't found in our Solar ...

"We have by and large been ignoring triples in models and simulations — we're just starting to understand how these types of systems evolve." When you purchase through links on our site, we may earn ...

(CNN) — After decades of searching, astronomers have uncovered some of the strongest evidence yet of exoplanets orbiting Barnard’s Star, the nearest single star system to Earth. The four planets are ...

(CNN) — After decades of searching, astronomers have uncovered some of the strongest evidence yet of exoplanets orbiting Barnard’s Star, the nearest single star system to Earth. The four planets are ...

For the first time, astronomers have spotted a rapidly spinning neutron star that is gravitationally bound to a helium star companion. The discovery of this unusual binary system helps confirm a long ...

In 2025, one might assume that all types of stars in the Milky Way have been cataloged, yet the universe continues to surprise us. In 1953, American astronomer Alan Sandage revolutionized our ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. After decades of ...