GRBs are the brightest electromagnetic phenomena that have ever been witnessed in the universe as a result of the bursting of gigantic energy within several seconds to several minutes. This review presents existing knowledge of GRB phenomenology, physics, and their application to the high-redshift universe. We describe the following bimodular classification between long and short bursts, which we associate with collapsars and compact binary mergers respectively. The paper discusses the conventional fireball model, relativistic jet contribution and multi wavelength afterglow phenomenon. More importantly, we evaluate the usefulness of GRBs in the study of cosmic star formation rates, the interstellar and intergalactic medium, and as a cosmological distance scale. The new data gathered with the help of such observatories as Fermi-GBM, Swift, and complex gravitational-wave detectors are combined to create a current and harmonious image. The conclusions also indicate the questions and the future on the next-generation observatories.
I. Zayer (Wed,) studied this question.