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 ...

In a 2022 study estimating the number of rogue worlds in the galaxy, Bennett and colleagues suggested that most of these free-floating planets are worlds with roughly the mass of Earth, or even ...

Astronomers used the James Webb Space Telescope for the largest and deepest sample of galaxy groups, some of which were up to 12 billion light-years away.

At first glance, their existence seems to greatly improve the odds for planets being abundant in the galaxy, because they appeared to confirm a common model of planet formation.

Astronomers used the James Webb Space Telescope to directly capture images of the planets in the star system HR 8799, which will help contextualize our existence in the universe.

There's a class of objects in the cosmos that are neither stars, nor are they quite planets. Astronomers used the powerful James Webb Space Telescope to sleuth out some of these objects, called ...

The James Webb Space Telescope has uncovered six "rogue planets" careening through space without a star. The objects are believed to have formed directly from gas collapse, blurring the lines ...