Astronomers using the James Webb Space Telescope (JWST) have discovered a stellar bar in GN20, a massive galaxy seen just 1.5 ...

New findings from the James Webb Space Telescope include cloudy weather on an exoplanet, and clues to the origins of one of Neptune's moons.

A large protocluster of galaxies that existed 12.6 billion years ago, first discovered with the Subaru Telescope, has been ...

Though long theorized to exist, the first exoplanet was detected in 1991. Since then, their known diversity has increased exponentially.

A planet that is about the size of Saturn, but with a temperature more like Earth’s, has an atmosphere rich in methane, ...

Most detailed map: Webb’s COSMOS-Web survey mapped the cosmic web in unmatched detail, reaching back to the universe’s first ...

At some 60 billion times the mass of the sun, this dark void could be home to a pair of black holes that are due for a cosmic collision.

For many astronomers and astrophysicists there are two distinct, important periods: before the James Webb Space Telescope – and after. It has powered many scientific discoveries since it came online, ...

Venus conjunction over Washington, D.C. to a meteor streaking through Earth’s atmosphere as seen from the International Space ...

Neptune’s oddball moon Nereid may be the sole remnant of an earlier system, formed near the planet rather than being pulled in from afar.

The study provides fresh insights into the formation of massive clusters in the early universe.

A new study led by researchers at the Institute of Cosmos Sciences of the University of Barcelona (ICCUB) and the Institute ...