The known universe is full of shockingly huge things. Here are the largest planets, stars, galaxies, and structures we've ...

Astronomers around the world have confirmed over 6,000 exoplanets, a milestone reached in September 2025. Billions more are waiting to be discovered.

The cluster’s brightest object sits near its central cavity. Webb’s infrared images show its light comes from at least three ...

The Cartwheel lies about 500 million light-years away in Sculptor. Its wagon-wheel shape formed after a violent collision ...

“Interstellar objects may be able to jump start planet formation, in particular around higher-mass stars,” Pfalzner said in a ...