Cosmic dawn galaxies seen by JWST reveal hidden clues about dark matter and keep rival theories about its true nature alive.

A multinational research collaboration led by the University of Oxford has pinpointed an immense, extraordinarily thin band ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

"We might lose the ability to observe about 30% of the faintest galaxies. We are at the point of starting to be able to see ...

A team of astronomers including George Washington University physics Ph.D. student Eliza Neights recorded an extraordinary ...

X-ray space telescopes caught a supermassive blackhole flinging matter into space at a fifth of the speed of light ...

A never-before-seen blast from a supermassive black hole was spotted by two sophisticated X-ray space telescopes. This giant ...

Direct chemical signatures in a distant galaxy captured by JWST confirm the presence of massive primordial stars, resolving ...

NASA’s Webb Telescope detects the earliest known supernova, GRB 250314A, 730 million years after the Big Bang, capturing its host galaxy and providing unprecedented early-universe observations.

For the first time, astronomers have observed ultra-fast winds emerging from a black hole in a distant galaxy, shedding new ...

NASA has completed assembly of the Nancy Grace Roman Space Telescope, preparing for final testing and launch by May 2027 to ...

The James Webb Space Telescope has found compelling evidence for "monster stars" — gigantic, primordial stars that existed in the early universe.