Gamma ray bursts are undoubtedly the most powerful blasts in the cosmos. In layman’s words, gamma ray bursts can be termed as high energy explosions in outer space. These bursts originate from the collapse of the most massive stars or from the collision of neutron stars. Other theories propose that these are the result of a merging b/w neutron star and a black hole or b/w two black holes. Gamma Ray Bursts can last from 10 milliseconds to hours. It was first discovered by military satellites in late 1960s. At present FERMI satellites observe GRBs.
In general, there are two types of gamma ray bursts. One lasts for more than two seconds and the other for less than two seconds. The first one is more common. These gamma rays burst are capable of producing more energy in 10 seconds than what the sun will emit in its entire lifespan. These ray bursts make even supernovae look small. GRBs are an extremely powerful form of supernovae called “hypernovae”.
Gamma rays bursts were observed in the energy range of 0.2 – 1 tetra electron volt. Highest energy GRB to be ever detected was on April 27, 2013. It had 94 million times energy than energy of visible light and had lasted for several hours. These gamma rays bursts even violate the law that nothing can travel faster than light in vacuum because these rays do.
Known as the deadliest radiation, its one attack is enough to destroy our planet. It might even be capable of vaporizing the planet. Whether an object will be affected or not depends on the fact whether the object is in the path of the beam or not. If the object is very close to the burst, but not in its way, it can do no harm to the object. But if found in the way of the path, the results will be devastating.