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 ...

Using the Whole Earth Blazar Telescope (WEBT), an international team of astronomers have performed long-term photometric ...

The cause of immigration reform has led Bill Blazar a bit outside his organization’s usual comfort zone. The second-in-command at the Minnesota Chamber of Commerce has been with the organization for ...

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 ...

Blazars are the brightest of active galactic nuclei, and many emit very high-energy gamma rays. New observations of the blazar known as PKS 1424+240 show that it is the most distant known source of ...

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 ...

A group of astronomers from around the world, including from Raman Research Institute (RRI) in Bengaluru, has spotted the brightest flare of the blazar called PG 1553+113 and said the analysis would ...

After 10 years of observations, scientists have confirmed a two-year cycle in the gamma-ray brightness of a blazar, or a galaxy with a supermassive black hole that consumes mass and produces ...

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 ...

A "blazar" is a supermassive black hole at the center of a faraway galaxy that's shooting energetic jets toward Earth. Scientists noticed one at the same time they detected a neutrino, a whispy ...