Nick Hague and Suni Williams spent six hours working on NICER, AMS and other equipment outside the International Space ...

The newly discovered "blazar," which has a mass equal to 700 million suns, is the oldest of its kind ever seen and changes ...

A supermassive black hole in a distant galaxy is once again surprising scientists. In 2018, a black hole called 1ES 1927+654, ...

A strange black hole is making scientists scratch their heads. The distant object, dubbed "1ES 1927+654" and packing the mass ...

Astronomers have detected a mid-infrared flare from the supermassive black hole at the heart of the Milky Way galaxy for the ...

"If our eyes were able to detect X-rays, the sky would be full of dots. And every single one of those dots would be an ...

In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again ...

Supermassive black holes with powerful jets of high-energy particles, pointing directly at Earth are called blazars.

Scientists have detected emanating from the nucleus of a galaxy relatively close to our Milky Way flashes of X-rays gradually ...

In December 2022, less than six months after commencing science operations, NASA's James Webb Space Telescope revealed ...

A mysterious black hole has started behaving even more strangely, scientists have said. The supermassive black hole has been ...

Using the MIRI instrument onboard the James Webb Space Telescope, an international team of scientists made the first-ever ...