A stellar bar has been discovered in the galaxy GN20, which dates back to just 1.5 billion years after the Big Bang.

We know many things about our universe, but astronomers are still debating exactly how fast it is expanding. In fact, over the past two decades, two major ways to measure this number—known as the ...

The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...

Astronomers have long been puzzled by supermassive black holes that seem to have fully formed in the earliest epochs of the universe. Now, a new paper suggests that these monster black holes may have ...

Astronomers using the James Webb Space Telescope have captured dramatic helium streams pouring off the super-puff exoplanet WASP-107b, revealing a world with an enormously inflated, weakly bound ...

For years, strange red dots in James Webb images left scientists puzzled. New research shows they are young black holes hidden inside dense clouds of gas, glowing as they devour their surroundings.