Using the Whole Earth Blazar Telescope (WEBT), an international team of astronomers have performed long-term photometric ...
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 ...
Doug Cowen is a professor of astronomy, astrophysics and physics at Pennsylvania State University; Derek Fox is an associate professor of astronomy and astrophysics at Pennsylvania State University; ...
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 ...
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 ...
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 ...
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