Magnetic fields thread through galaxies, stretch across cosmic voids, and shape the behavior of charged particles over millions of light-years. Yet their origin remains one of the most stubborn ...

A neutrino with almost unimaginable energy slammed into Earth in early 2023, carrying roughly 220 petaelectronvolts, far ...

New experiments at CERN by an international team have ruled out a potential source of intergalactic magnetic fields. The existence of such fields is invoked to explain why we do not observe secondary ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

Jonathan Biteau a reçu des financements de l'Université Paris-Saclay et de l'Institut Universtaire de France. Les humains utilisent les astres pour se repérer depuis la nuit des temps. Aujourd’hui, la ...

Fans of J.R.R. Tolkien's "The Lord of the Rings" books or those who enjoyed Peter Jackson's Oscar-winning movie versions of the story will be familiar with the Eye of Sauron. It was the name given to ...

For more than 150 years, the OJ 287 galaxy and its brightness variations five billion light years away has both puzzled and fascinated astronomers, because they suspect two supermassive black holes ...

Gamma-ray flares from blazars can be accompanied by high-energy neutrino emission. To better understand this phenomenon, an international research team has statistically analyzed 145 bright blazars.

Add Yahoo as a preferred source to see more of our stories on Google. An illustration shows the blazar Markarian 421 blasting out high-energy jet as seen by NASA's IXPE mission. A NASA mission has ...

The universe is full of mysteries, and one of its most captivating phenomena is the existence of supermassive black holes that produce powerful jets of high-energy particles, creating sources of ...

UNIVERSITY PARK, Pa. — More than a hundred blazars — distant and active galaxies with a central supermassive black hole that drives powerful jets — have been newly characterized by Penn State ...

Researchers say they have discovered a jet from a galaxy with a black hole at its center changed its direction to point toward Earth. The galaxy, named PBC J2333.9-2343, has changed classification due ...