A supernova from the early universe looks unexpectedly familiar, challenging ideas about how the first massive stars lived ...

One side of TOI-561 b is constantly locked towards its star, and the observations showed that this face is very cool for such a closely orbiting planet. A thick atmosphere must be transferring heat ...

The exoplanet, dubbed PSR J2322-2650 b, has a helium-and-carbon atmosphere, something researchers say they've never seen ...

Interstellar object 3I/ATLAS has developed a rare and persistent anti-tail that appears to point towards the sun. This is a ...