Gamma-ray
Gamma-ray Astronomy: Site negotiations for Cherenkov Telescope Array started
Chile and Namibia as well as Argentina as a third option have been selected from the candidates on the southern hemisphere for concrete negotiations. This has…
NASA's Fermi Makes First Gamma-ray Study of a Gravitational Lens
This accomplishment opens new avenues for research, including a novel way to probe emission regions near supermassive black holes. It may even be possible to…
Glimpsing the Infrastructure of a Gamma-ray Burst Jet
Gamma-ray bursts are the most luminous explosions in the cosmos. Most are thought to be triggered when the core of a massive star runs out of nuclear fuel,…
NASA Sees 'Watershed' Cosmic Blast in Unique Detail
A trio of NASA satellites, working in concert with ground-based robotic telescopes, captured never-before-seen details that challenge current theoretical…
NASA's Hubble Finds 'Smoking Gun' After Gamma-Ray Burst
The definitive evidence came from Hubble observations in near-infrared light of the fading fireball produced in the aftermath of a short gamma-ray burst (GRB)….
Dying Supergiant Stars Implicated in Hours-long Gamma-Ray Bursts
The astronomers discussed their findings Tuesday at the 2013 Huntsville Gamma-ray Burst Symposium in Nashville, Tenn., a meeting sponsored in part by the…