A young planet named HIP 67522 causes violent eruptions on its star, dramatically accelerating the loss of its own atmosphere ...

Astronomers led by Simon Portegies Zwart used simulations to reconstruct how three stars were ejected from the star cluster ...

Astronomers have detected a giant exoplanet—between three and ten times the size of Jupiter—hiding in the swirling disk of ...

That complexity could mean bigger fireworks ahead. With the sunspot now rotating to face Earth, it could pose a threat for stronger space weather events in the coming days. M-class flares, like those ...

Two international teams zoned in on a potential answer to a decades-long mystery surrounding ephemeral cosmic X-rays.