Cosmic Rays Come from Active Galaxies. Maybe...
Not long ago, scientists tracked down the origin of cosmic rays to supermassive black holes located in the cores of active galactic nuclei. Cosmic rays are streams of high energy subatomic particles coming from intergalactic space. Ultra-high-energy cosmic rays, however, are far more energetic than usual cosmic rays, capable or reaching energies of 10^20 (1 followed by 20 zeros) electron volts per subatomic particle. Such energies can't be reached even in the most powerful particle accelera...
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Created by danny Created 20 weeks 5 days ago – Made popular 20 weeks 5 days ago
Category: Science
Category: Science
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- Powerful Cosmic Rays: Not From the Neighborhood, Scientists Say Created 27 weeks 5 days ago
- More than 42 years ago, Kenneth Greisen from Cornell University, Grorgiy Zatsepin and Vadim Kuzmin from Mascow Lebedev Institute of Physics independently predicted that cosmic rays emitted throughout the universe would never hit the Earth at their full strength due to collision with the Cosmic Microwave Background, remnant of the Big Bang event that led to the birth of the universe. This is called Greisen-Zatsepin-Kuzmin (GZK) suppression of ultrahigh-energy cosmic rays.
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- Geminga Pulsar Linked to Weird Cosmic Ray Emission Created 30 weeks 1 day ago
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