New observations reveal that the relationship between ultraviolet and X-ray light in quasars has changed over billions of ...

A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's ...

U.S. National Science Foundation NOIRLab astronomers, using data from the James Webb Space Telescope and the Chandra X-ray ...

Leading X-ray space telescopes XMM-Newton and XRISM have spotted a never-seen-before blast from a supermassive black hole. In ...

Using the James Webb Space Telescope (JWST), an international team of astronomers has observed an elliptical galaxy known as ...

Taking a look back over the last twelve months, here are several of the biggest science stories in physics this year, as well ...

Distance records are an excellent proxy for the state of the art in astronomy. Finding extremely faraway galaxies is hard. In ...

Astronomers have decoded the hidden past of a distant red giant star by listening to tiny vibrations in its light, revealing ...