The comet, named 3I/ATLAS, is only the third confirmed interstellar object ever seen in our solar system. That means it came ...

A recent study has sparked intrigue by suggesting the existence of a mysterious object from beyond our solar system behaving ...

Lava planets, which have one face perpetually turned toward their star and heated to temperatures capable of melting rock, offer a unique natural laboratory for exploring the interactions ...

It’s especially puzzling since Venus is a terrestrial world much like Earth, so much so that it’s considered to be our planet ...

"The profile of the occultation was most consistent with it being a new satellite — a new moon — going around Quaoar." ...

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

Astronomers have spotted a planet just 90 light years away from Earth with a surprising atmosphere — and the possibility of clouds containing water. TOI-1231 b is an exoplanet, meaning it is located ...

A rare exoplanet that should have been stripped down to bare rock by its nearby host star's intense radiation somehow grew a puffy atmosphere instead -- the latest in a string of discoveries forcing ...

Astronomers have discovered a distant exoplanet with a tail that stretches over 5.5 million miles long. Credit: Jose-Luis Olivares / MIT illustration Astronomers have accidentally found a planet with ...

Washington, DC – Using a network of small automated telescopes known as HAT, Smithsonian astronomers have discovered a planet unlike any other known world. This new planet, designated HAT-P-1, orbits ...

Artist’s concept of TIC365102760 b, nicknamed Phoenix for its ability to survive a red giant star’s intense radiation from up close. A rare exoplanet that should have been stripped down to bare rock ...