Cosmic gas cloud blinks in sync with circling black hole. Scientists have detected a mysterious gamma-ray heartbeat coming from a cosmic gas cloud. The inconspicuous…
Rare event occurred 10 billion lightyears away, 3.8 billion years after the Big Bang SGRB181123B is the most distant short gamma ray burst with its…
To better understand and mitigate the health risks faced by astronauts from exposure to space radiation, we ideally need to be able to test the…
The physical process driving Gamma-Ray Bursts might be synchrotron radiation after all. A new analysis of Fermi/GBM archival data of gamma-ray bursts (GRB), the most…
First Detection of Inverse Compton Emission From Dying Gamma-Ray Burst A dying star emits intense flashes of light called a gamma-ray burst. Most days, the…
Second fastest spinning radio pulsar known is a gamma-ray pulsar, too. Multi-messenger observations look closely at the system and raise new questions. An international research…
Scientists from the RIKEN Cluster for Pioneering Research and collaborators have used simulations to show that the photons emitted by long gamma-ray bursts–one of the…
In the blink of an eye, a massive star more than 2 billion light-years away lost a million-year-long fight against gravity and collapsed, triggering a…
Researchers at Oregon State University have confirmed that last fall’s union of two neutron stars did in fact cause a short gamma-ray burst. The findings,…
A “core-collapse” supernova occurs when the iron core of a massive star collapses under the force of gravity and then rebounds, generating pressure waves and…
New model connects the origins of very high-energy neutrinos, ultrahigh-energy cosmic rays, and high-energy gamma rays with black-hole jets embedded in their environments. One of…
A storm system approaches: the sky darkens, and the low rumble of thunder echoes from the horizon. Then without warning… Flash! Crash! — lightning has…
A mountaintop observatory about four hours east of Mexico City, built and operated by an international team of scientists, has captured the first wide-angle view…
New research reveals that the center of our Milky Way contains a “trap” that concentrates some of the highest-energy cosmic rays. A combined analysis of…
Dive into the Large Magellanic Cloud and see a visualization of LMC P3, an extraordinary gamma-ray binary system discovered by NASA’s Fermi Gamma-ray Space Telescope….
Using data from Chandra, astronomers have the strongest evidence to date that violent stellar mergers produce pencil-thin jets. This result has implications for estimating the…
By studying the spatial distribution of gamma-ray emission in the Milky Way, astronomers believe they have identified a signature of dark matter annihilation. We live…
Using the VERITAS array, astronomers have detected gamma rays from a blazar known as PKS 1441+25. The research shows that the source of the gamma…