The mystery of galaxies in the early Universe just got even weirder. A team of astronomers has identified a giant spiral galaxy so well-formed that it already has a stable galactic bar; a long, ...

NASA, using the Chandra X-Ray Observatory and radio telescopes, discovered supermassive black holes in distant galaxies ...

A binary system 18,000 light-years away, emits X-rays as a Sun-like star orbits a dense companion, either a neutron star or black hole. Telescopes like Chandra, IXPE, and XMM-Newton capture its ...

When the JWST came to life and began observations, one of its first jobs was to gaze back in time at the early universe. The ...

Astronomers searching for massive black holes shredding stars found one in an unusual place -- 2,600 light years from the core of a galaxy. The roque black hole may be from an earlier merger with ...

Astronomers are urging Earthlings to keep their eyes peeled for a once-in-a-lifetime sight that hasn't been observed for 80 ...

NASA’s Chandra X-ray Observatory and Hubble Space Telescope have been used to study a cluster of stars, nicknamed “Nikhuli," ...

Astronomical observations with the James Webb Space Telescope support the hypothesis that the first pronounced structures in our Universe may have formed much earlier than previously assumed.

This image from NASA’s Chandra X-ray Observatory reveals the locations of various elements in the Cassiopeia A supernova remnant, including silicon (red), sulfur (yellow), calcium (green), and iron ...

Check out an amazing view of star cluster NGC 602. It "lies on the outskirts of the Small Magellanic Cloud," according to the ...

Astronomers have spotted a supermassive black hole eating a star. This happened far from the center of its galaxy. The event, ...

Sophisticated computational models let us examine objects such as supernova remnants in extraordinary detail and from every ...