Supermassive black hole, Earth

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...
Strange x-ray pulses hint at a surprisingly long-lived white dwarf orbiting precariously close to a supermassive black hole ...
"Finding more supermassive black holes that are potentially hosting jets raises the question as to how these black holes grew ...
A strange black hole is making scientists scratch their heads.
In 2018, a galaxy about 270 million light-years away from Earth exhibited a major increase in activity. It quieted down again by 2020 -- only to dramatically increase its output again in 2023. At that ...
Researchers in South Korea are developing a constellation of satellites that could reveal what goes on in the vicinity of ...