James Webb Space Telescope

Uranus' 29th moon was hidden inside the planet's dark inner rings, new observations from the James Webb Space Telescope reveal.

Astronomers used the James Webb Space Telescope to investigate whether the most distant star identified in the universe is, in fact, a star cluster.

A distant galaxy nicknamed "Cosmic Grapes" is bursting with massive star-forming clumps — far more than expected — offering fresh clues about how galaxies grew in the early universe.

Alpha Centauri may have a "disappearing planet', new James Webb Space Telescope observations hint. If confirmed, it could be the closest alien planet to Earth that orbits in its star's habitable zone.

High-speed winds on exoplanet WASP-17b may align quartz crystals in its atmosphere and create dazzling light effects like "sun dogs."

Captured in infrared light by the James Webb Space Telescope, the peculiar star system Apep consists of two dying stars spewing their innards at each other.

Using data from the James Webb Space Telescope, astronomers have discovered dormant galaxies with a wide range of masses in the first billion years after the Big Bang, moving one step closer to understanding how early galaxies grow.

At the 246th American Astronomical Society meeting in Alaska last month, scientists discussed how Trump's budget cuts could affect operations for the Hubble Space Telescope and JWST.