Astronomers have performed very long baseline interferometry (VLBI) observations of a gamma-ray loud blazar known as TXS ...

A blazar is an extraordinarily bright object with a supermassive black hole at its core. Some of the matter falling into the ...

A supermassive black hole, named TXS 2013+370 and weighing 400 million times more than the Sun, has been observed firing deadly gamma-ray flares towards Earth.

In 1911 and 1912, an Austrian physicist named Victor Hess took to the sky in a series of risky hot-air balloon trips—for science. Down on land, researchers had been registering signals of mysterious ...

When a galaxy gets pulled into the supermassive black hole at its center — yes, that happens — it can create a blazar — an intense beam of high-energy radiation. There are thousands of blazars across ...

The universe is full of powerful supermassive black holes that create powerful jets of high-energy particles, creating sources of extreme brightness in the vastness of space. When one of those jets ...

On Thursday, researchers announced that they’d caught a single, tiny, high-energy particle called a neutrino that had rained down on Earth from a supermassive black hole some 4 billion light-years ...

Researchers have obtained the clearest picture yet of the physics behind one of the most spectacular processes in the universe — huge bursts of light called blazars that are created as supermassive ...

Astronomers describe a 'changing-look' blazar -- a powerful active galactic nucleus powered by supermassive blackhole at the center of a galaxy. A University of Oklahoma doctoral student, graduate and ...