The blazar, named J0410–0139, is located about 12.9 billion light-years away at the center of a galaxy. This makes it the ...
In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...
This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.
Active galactic nuclei (AGN) are among the most energetic phenomena observed in the universe. These luminous objects, powered ...