JWST captures a rare “cosmic jellyfish” 8.5 billion years old, exposing violent cluster forces that transformed galaxies in the young universe.

James Webb Space Telescope detects a candidate jellyfish galaxy 5 billion years after the Big Bang, providing insights into ram-pressure stripping and early galaxy evolution.

Astronomers have just identified what appears to be a cosmic anomaly: a faint galaxy with so few visible stars that, according to calculations, as much as 99.9 percent of its mass is dark matter. The ...

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New observations from the NASA/ESA/CSA James Webb Space Telescope reveal a galaxy with sweeping gaseous ‘tentacles’ in a galaxy cluster at redshift of 1.156, meaning we’re seeing it as it was ...

Astrophysicists from the University of Waterloo have observed a new jellyfish galaxy, the most distant one of its kind ever captured. Jellyfish galaxies are named for the long, tentacle-like streams ...

It’s an open secret in astronomy that, practically wherever the James Webb Space Telescope (JWST) looks in the sky, a vast, clump-filled mist fills its view. But luckily for everyone marveling at JWST ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself. By Katrina Miller The universe continues to surprise those ...

While peering into some of the oldest regions of the known universe — dating back to just 1.4 billion years after the Big Bang — an international team of astronomers made a puzzling discovery. As ...

Greetings from 4.6 billion years ago! This is the first deep field image from the James Webb Space Telescope, centered on the galaxy cluster SMACS 0723. Beyond the stars of the Milky Way (which have 8 ...

Spend 8 minutes with an image that has changed astronomy forever - the first-ever deep field view of galaxy cluster SMACS 0723 from the James Webb Space Telescope. Credit: NASA, ESA, CSA, and STScI | ...