For two years, JWST kept photographing compact reddish smears in the early universe that matched nothing in any cosmic ...

A magnetar is the collapsed core of a massive star, compressed into a sphere roughly the size of a city and threaded by an extraordinarily strong magnetic field. Its matter is so dense that familiar ...

There is a literal fault in our stars. Astronomers may have stumbled onto a bizarre cosmic object that appears to be part black hole, part star, and is so ridiculously energetic that it outshines its ...