In order to explain the presence of these heavier elements today, it’s necessary to find phenomena that can produce them. One type of event that fits the bill is a gamma-ray burst (GRB) – the most powerful class of explosion in the universe.

The universe’s biggest explosions made some of the elements we are composed of. But there’s another mystery source out there

Source: space
Source Link: https://www.space.com/biggest-explosions-made-elements-we-are-composed-of-other-mystery-source