A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

Ever wondered how planetary systems like our own solar system form? Thanks to the European Space Agency's Gaia space ...

Hot Jupiters rank among the strangest planets astronomers have ever found. They are gas giants as massive as Jupiter, yet ...

Learn how the discovery of a young planet orbiting two suns is revealing how worlds form and survive in binary star systems.

Hot Jupiters were once cosmic oddities, but unraveling how they moved so close to their stars has remained a stubborn mystery ...

A key method of forming planets finally has observational evidence, thanks to a network of radio telescopes in the U.K. that have resolved the existence of a huge abundance of centimeter-sized pebbles ...

A distant world with carbon in its atmosphere and extraordinarily high temperatures is unlike any other planet we’ve seen, and it’s unclear how it could have formed ...

How did a planet this big form around a star this small? An international team of astronomers, including researchers from the University of Liège and collaborators in UK, Chile, the USA, and Europe, ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming discs around young stars could become the seeds of giant planets, bypassing a hurdle that theoretical models have ...

In a discovery that's fit for a movie, Northwestern University astronomers have directly imaged a Tatooine-like exoplanet, orbiting two suns. While obtaining an image of a planet beyond our solar ...

A mysterious comet flying through our solar system may be doing more than just passing by—it could help explain how giant planets like Jupiter are born. At a major planetary science conference in ...

Astronomers have discovered a planet beyond the solar system that orbits its twin parent stars closer than any ever seen ...