In 1991, an experiment detected the highest-energy cosmic ray ever observed. Later dubbed the Oh-My-God particle, the cosmic ray’s energy shocked astrophysicists. Nothing in our galaxy had the power ...
Scientists still don’t know where ghostly particles called neutrinos originate. A distant galaxy could be a potential source.
More than one million sources of energy are featured in the first X-ray images from the eROSITA space telescope. By Laura Baisas Published Feb 5, 2024 12:00 PM EST Add Popular Science (opens in a new ...
A new theory suggests the universe is constantly recording its own history in the fabric of spacetime. If correct, this ...
A neutrino from space recently plunged into the Mediterranean Sea with an energy that blows all other known neutrinos out of the water. Packing a punch of some 220 million billion electron volts, this ...
Some of the most energetic cosmic rays in the galaxy may come from a surprisingly small source. If Max Planck Institute for Astrophysics researcher Laura Olivera-Nieto and her colleagues are right, ...
High-energy cosmic rays, 10 million times more powerful than particles accelerated in Earth's strongest atom smasher, may ...
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Dark energy is still accelerating the expansion of the universe, and astronomers are relieved
The expansion of the universe is still accelerating under the influence of dark energy, despite recent claims to the contrary ...
Artist’s illustration of extensive air showers induced by ultra-high-energy cosmic rays. Credit: Toshihiro Fujii/L-INSIGHT/Kyoto University Cosmic rays are highly energetic subatomic particles ...
Galactic cosmic rays — high-energy particles from outside the solar system — could theoretically power life on certain frigid worlds. The radiation can trigger chemical reactions underground, whose ...
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