XRISM has uncovered how galaxy clusters evolve—violent mergers create turbulence, preventing hot gas from cooling. This ...

Scientists say they've uncovered the "largest known galactic structure" — a cosmic monster that spans a mind-boggling 1.4 ...

The XRISM collaboration has discovered flows of hot gas in the core of the Centaurus Cluster. By comparing state-of-the-art X ...

The X-ray flash, named XRT 200515 ... by other unknown X-ray flashes the Chandra telescope has seen outside our galaxy, according to a paper published this month in the journal Monthly Notices ...

Scientists used XRISM to detect hot gas flows in Centaurus Cluster, proving that galaxy collisions cause gas movement and ...

When Sgr A* feeds on this material, it emits X-ray flares that propagate outwards in all directions. These flares interact with molecular clouds—gas clouds where stars form—in our galaxy's ...

Data from the XRISM X-ray satellite provide unprecedented detail on how ionized plasma moves in massive galaxy clusters — a question with huge cosmological and astrophysical implications.

On 15 May 2020, while Chandra was observing the remains of an exploded star in the LMC (a small galaxy neighboring our Milky Way), it accidentally captured a bright and extremely fast X-ray flash ...

Astronomers have uncovered a baffling cosmic anomaly — a supermassive black hole in galaxy NGC 5084 that appears to be ...