A Gamma Ray Burst Lasted So Long it Triggered a Satellite Twice - by briankoberlein
Gamma Ray Bursts are the most powerful astrophysical phenomena in the universe. For a span of seconds to a few minutes, they can be the most powerful high-energy event in the sky, shining across billions of light years. But recently astronomers detected a GRB that lasted more than a thousand seconds, with two blasts of gamma rays that triggered the Fermi Gamma Ray Burst Monitor. It’s such a strange cosmic event that astronomers aren’t sure what caused it, but they do have a possible idea.
, which were designed to detect nuclear tests during the cold war. It was only years after their detection that they were declassified. While their flash of gamma-ray energy is short-lived, GRBs also emit an afterglow that can be seen in radio and other wavelengths. So we have some ideas about their source. Most of them occur billions of light-years from Earth and are likely caused by the death of extremely massive stars. The burst of gamma rays is emitted when the star collapses to form a black hole. Some GRBs may also be caused when neutron stars collide to create a black hole.
Norge Siste Nytt, Norge Overskrifter
Similar News:Du kan også lese nyheter som ligner på denne som vi har samlet inn fra andre nyhetskilder.
There's yet another hiccup with AMD ray tracing support | Digital TrendsIt appears that gamers who are eager to play Ratchet & Clank: Rift Apart on PC may have to play without ray tracing if they're using an AMD GPU.
Les mer »
‘Guardians Vol. 3’: All the Coolest New Blu-ray Easter EggsAll the cool Easter eggs in GuardiansOfTheGalaxyVol3 we missed in theaters - but could finally spot on 4K and Blu-ray.
Les mer »
4K Remaster of Batman: Mask of the Phantasm Arrives on Blu-ray, Digital in September4K remaster of 'Batman: Mask of the Phantasm' arrives on Blu-ray, digital in September with new Kevin Conroy memorial featurette. Batman DCComics KevinConroy
Les mer »
Updated X-ray machines use AI to search backpacks in schoolsUpdated X-ray machines that use AI to search backpacks approved for more than 100 Chicago Public Schools buildings
Les mer »
South Park: Seasons 21-25 Blu-ray Review: A Hilarious, Value-Focused CollectionThe South Park: Seasons 21-25 Blu-ray was recently released and is a solid value for fans of cable's longest-running scripted series.
Les mer »