For years, astronomers have searched for the origins of ultra-high-energy cosmic rays, the most powerful particles in the universe. These energetic travelers move at nearly the speed of light, packing ...

The most powerful cosmic rays in the universe currently have no explanation. New research suggests that exotic, self-annihilating particles in our own galaxy may hold the answer.

Cosmic rays are high-energy particles that constantly ... Each one travels at nearly the speed of light, and the fastest ones have energies trillions of times stronger than our most powerful ...

"We would like to understand the difference between these systems, which holds the clue to understand just how many cosmic rays are produced in the jets of microquasars." ...

The use of artificial intelligence (AI) scares many people as neural networks, modeled after the human brain, are so complex ...

BL Lacertae, an enigmatic blazar, has shattered long-held classification norms, leaving astronomers baffled. Originally ...

Opinion High energy neutrinos are the coolest particles in astrophysics. Born in distant cosmic cataclysms, they speed ...

The European Space Agency has released its first tranche of data from the Euclid space telescope's mission to map the ...

DURING the last ascent of the balloon F.NM.S. (August 18, 1934), we had the opportunity of measuring with precision the intensity of cosmic rays at altitudes of about 12,000 m., 15,000 m.

The universe is absolutely soaked in cosmic rays. Our magnetic field and our atmosphere protect us from most of the cosmic rays, but still, if you’re standing around on the surface of the Earth, about ...

XRISM has uncovered how galaxy clusters evolve—violent mergers create turbulence, preventing hot gas from cooling. This ...

ESA’s Integral observed space for 22 years, uncovering gamma-ray bursts, black holes, and gravitational waves.