On Sunday, Oct. 9, 2022, a pulse of intense radiation swept through the solar system so exceptional that astronomers quickly dubbed it the BOAT—the brightest of all time. The source was a gamma-ray burst (GRB), the most powerful class of explosions in the Universe. The burst triggered detectors on numerous spacecraft, and observatories around the globe followed up. After combing through all of this data, astronomers can now characterize just how bright it was and better understand its scientific impact.
Mar 22, 2021
A new correlation has been discovered in optical observations of gamma ray bursts (GRBs) that may be the key to using GRBs as cosmological distance indicators, adding another rung to the so-called "distance ladder" that helps astronomers determine the size of the observable Universe.