Astronomers have detected the most distant very-high-energy blazar ever observed, capturing gamma rays that traveled nearly 8 billion light-years before reaching Earth. The discovery, reported in ...

Scientists have learned that thunderstorms create antimatter. Electrons collide with particles to make gamma rays, which then make antimatter.

Picture taking the single most energetic explosion the universe produces and hurling it directly at one of the most powerful ...

A new observatory is set to detect sources of cosmic rays, dark matter and other relics of the Big Bang in a few years' time.

Researchers spotted an unusual gamma-ray signal in three galaxy clusters, which may be a telltale sign of dark matter – or ...

For decades, scientists have puzzled over why certain atomic nuclei unexpectedly produce large numbers of low-energy gamma ...

New research conducted by an international team of physicists has found that high-energy gamma rays might offer the key to unlocking the mysteries of the sun's magnetic fields. The study, led by the ...

In a single experiment, physicists have measured the "excess" emission of high-energy gamma rays from more than a dozen heavy, unstable atomic nuclei. Mapping the gamma-ray emissions of so many ...

Gamma rays are among the most powerful types of radiation in nature and a key area of interest in the search for dark matter, especially for scientists who support the WIMP theory. As per their name, ...

Scientists traced a mysterious surge of low-energy gamma rays from zinc-70 to magnetic changes occurring inside its nucleus. The breakthrough could improve models of how stars, supernovae, and neutron ...