See composite views of the Cartwheel Galaxy captured by the James Webb Space Telescope. The galaxy is 500 million light years away and has also been imaged by Hubble Space Telescope, comparison shown ...

Euclid telescope has located a rare hoop of light called an "Einstein ring" in a nearby elliptical galaxy. Though the galaxy has been on humans' radar for 140 years, its halo is new—and it has a lot ...