Astronomers have performed very long baseline interferometry (VLBI) observations of a gamma-ray loud blazar known as TXS 2013+370. The observations, posted November 19 on the arXiv preprint server, ...
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 ...
A University of Oklahoma doctoral student, graduate and undergraduate research assistants, and an associate professor in the Homer L. Dodge Department of Physics and Astronomy in the University 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 ...
We’ve thrown a lot of disasters at Earth over the years: from asteroids and aliens, to the Sun’s death. But hey, the Universe is a dangerous place, and we’re not done yet. Now, we’re going to throw a ...
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 ...
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 ...
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 ...
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