active galaxy

Twin jets pinpoint the heart of an active galaxy

The technique used to investigate the inner details of NGC 1052 is known as very-long-baseline interferometry, and has the potential to locate compact jet…

Possible Extragalactic Source of High-Energy Neutrinos

Nearly 10 billion years ago in a galaxy known as PKS B1424-418, a dramatic explosion occurred. Light from this blast began arriving at Earth in 2012. Now, an…

Fuel for the black hole

The use of near-infrared interferometry allowed the team to resolve a ring-shaped dust distribution (generally called “dust torus”) in the inner region of the…

Swift survey finds 'missing' active galaxies

An international team of scientists using data from NASA's Swift satellite confirms the existence of a largely unseen population of black-hole-powered…

Fermi maps an active galaxy's 'smokestack plumes'

NASA's Fermi Gamma-Ray Space Telescope maps gamma rays, radiation that typically packs 100 billion times the energy of radio waves. Nevertheless, and to the…

NASA's Fermi Finds Gamma-ray Galaxy Surprises

“Compton showed us that two classes of active galaxies emitted gamma rays — blazars and radio galaxies,” said Luigi Foschini at Brera Observatory of the…

NASA's Fermi Mission, Namibia's HESS Telescopes Explore a Blazar

The picture that emerges from these first-ever simultaneous observations with optical, X-ray and new-generation gamma-ray telescopes is much more complex than…

Black hole outflows from Centaurus A detected with APEX

The new data, from the Atacama Pathfinder Experiment (APEX) telescope in Chile, which is operated by ESO, have been combined with visible and X-ray wavelengths…

Hubble sees magnetic monster in erupting galaxy

NGC 1275 is one of the closest giant elliptical galaxies and lies at the centre of the Perseus Cluster of galaxies. It is an active galaxy, hosting a…