Astronomers have employed the Very Energetic Radiation Imaging Telescope Array System (VERITAS) to observe a mysterious gamma-ray emitting source designated HESS J1857+026. Results of the ...

A team of scientists has developed a perovskite‐based gamma‐ray detector that delivers energy and spatial resolution on par with—or exceeding—state-of-the-art cadmium zinc telluride and sodium iodide ...

The breakthrough could make scans sharper, faster, cheaper, and safer — expanding access to high-quality nuclear medicine imaging for patients worldwide. Physicians rely on nuclear medicine scans, ...

Scientists have detected the highest energy gamma rays ever from a dead star called a pulsar. The energy of these gamma rays clocked in at 20 tera-electronvolts, or about ten trillion times the energy ...

A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly ...

A supernova from the early universe looks unexpectedly familiar, challenging ideas about how the first massive stars lived ...

Next month, the agency plans to begin detecting invisible signals from some of our universe's most extreme regions. When you purchase through links on our site, we may earn an affiliate commission.

"Fermi is the most sensitive gamma-ray telescope in orbit, so when it doesn’t detect an expected signal, scientists must explain the absence." When you purchase through links on our site, we may earn ...

Astronomers are trying to understand what caused a series of gamma ray bursts, or GRBs — the most powerful explosions in the universe. These energetic bursts are typically unleashed by the incendiary ...

Physicians rely on nuclear medicine scans, like SPECT scans, to watch the heart pump, track blood flow and detect diseases hidden deep inside the body. But today's scanners depend on expensive ...