The origin of the extragalactic γ-ray background permeating throughout the Universe remains a mystery forty years after its discovery 1.The extrapolated population of blazars can account for only ...

An ultra-high-energy cosmic ray carries tens of millions of times more energy than any human-made particle accelerator such as the Large Hadron Collider, the most powerful accelerator ever built ...

The source of this extragalactic cosmic ray, detected on May 27, 2021, remains an enigma, as its incoming direction does not align with any known astronomical objects.

Cosmic ray found decades ago had 'more energy than was theoretically possible' The most powerful cosmic ray, named the Oh-My-God particle, was detected more than 30 years ago and measured around ...

An ultra-high-energy cosmic ray carries tens of millions of times more energy than any human-made particle accelerator such as the Large Hadron Collider, the most powerful accelerator ever built ...

Once completed, 500 new detectors will allow the Telescope Array to capture cosmic ray-induced particle showers across 2,900 square kilometers (about 1,120 square miles) — an area nearly the ...

Scientists in Utah have identified a rare cosmic ray that could've come from beyond the Milky Way. It has been named the "Amaterasu particle" after the Japanese sun goddess. A Telescope Array ...

An extremely energetic cosmic ray – an extragalactic particle with an energy exceeding ~240 exa-electron volts (EeV) – has been detected by the Telescope Array experiment’s surface detector ...

But where do these cosmic rays come ... These are often called cosmic-ray electrons," Tjus ... So by the time extragalactic cosmic rays reach Earth after traveling millions or billions of ...

Astronomers led by Stanford University and Harvard believe the "remarkable" cosmic explosion could either be the first X-ray burster ever discovered in the Large Magellanic Cloud (LMC), a rare ...

It rivals the single most energetic cosmic ray ever observed, the “Oh-My-God” particle that was detected in 1991, the study found. Cosmic rays are charged particles that travel through space ...