Magnetic fields that stretch across thousands of light-years should take a very long time to organize. Standard dynamo theory ...

A strange, starless object is forcing astronomers to rethink how galaxies are born. Using the Hubble Space Telescope, NASA scientists have identified a massive cloud of dark matter and gas that looks ...

A galaxy made almost entirely of dark matter, an elusive form of matter that doesn’t interact with light, was spotted by Hubble 250 million light-years from Earth.

A powerful "gamma-ray burst" has been seen exploding from merging neutron stars hidden within a previously unknown mini-galaxy leftover from an ancient cosmic crash. The "collision within a collision" ...

Astronomers have used the James Webb Space Telescope to peer inside the heart of spiral galaxies, where young stars carve out glowing paths. The space observatory, named after a North Carolina native, ...

The James Webb Space Telescope has peered through cosmic dust to reveal new details and a stunning image of a rare type of galaxy. The space observatory's latest image shows the Cartwheel galaxy, a ...

A fleet of NASA missions has likely uncovered a collision between two ultradense stars in a tiny galaxy buried in a huge stream of gas. Astronomers have never seen this type of explosive event in an ...

Deep in the digital bedrock of 35 years of Hubble observation archives, a new AI tool has uncovered more than 800 previously undocumented cosmic anomalies in a scant two and a half days. Using a ...

It is located about 25 million light-years from Earth in the constellation Ursa Major.