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 ...

The interferometer team, led by Steve Ertel, associate astronomer of Steward Observatory, observed several phenomena ...

A large international team of scientists has observed a phenomenon that astronomers didn't ever expect to see happen in real ...

Astronomers have captured the most detailed infrared images yet of an active galactic nucleus (AGN), using the Large ...

Active galactic nuclei are supermassive black holes at the center of certain galaxies. As matter falls into these black holes ...

When fed with matter, such black holes eject jets of charged particles in two directions at the speed of light. If a jet ...

A large international team of scientists has observed a phenomenon that astronomers didn't ever expect to see happen in real ...

Using the aging Hubble Space Telescope, Achenbach spotted an unusual spiral galaxy quasar with a visible jet. This calls into ...