X-ray telescopes catch a black hole firing ultra-fast winds at 60,000 km/s, revealing how flares trigger extreme cosmic ...

Using the James Webb Space Telescope, a team of international researchers have discovered chemical fingerprints of gigantic ...

Scientists are testing a novel way to measure cosmic expansion using time delays in gravitationally lensed quasars. Their ...

Sarah Dalessi, a fifth-year student in the College of Science at The University of Alabama in Huntsville (UAH), a part of The ...

Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...

The European Space Agency said that the black hole inside the spiral galaxy NGC 3783 has the mass of 30 million suns.

A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 triggered ultra-fast winds racing outward at a fifth the speed of light—an event never witnessed before. Using XMM-Newton and ...

NASA has visualized the cataclysm, which is thought to have caused a mysterious eruption of gamma rays captured by telescopes ...

Researchers have found a razor-thin, rotating string of galaxies inside a massive cosmic filament, revealing unexpected ...

The bright binary star system V Sagittae will flare up multiple times before finally going supernova within the next 100 ...