Anew study has challenged the existence of extreme cosmic objects, called "kugelblitze", which are black holes formed only from light.
The new theory states that it is not possible for such a black hole to be formed in our universe which challenges the theory of general relativity given by scientist Albert Einstein.
The study has shown how general relativity and quantum mechanics can be reconciled for solving complex scientific questions and placed some constraints on cosmological models.
Black holes are massive cosmic bodies which have intense gravitational pull from which even light fails to escape.
The black holes are formed because of the collapse of massive stars when their life cycles end and the pressure from thermonuclear reactions in their cores is no longer able to counteract the force of gravity.
What is kugelblitz, a 'hypothetical black hole'?
However, there is one type of black hole formation formula which is a more exotic hypothesis.
This theory explains the creation of a "kugelblitz", which is a German word for "ball lightning."
Explaining this black hole to Live Science, physicist and study co-author Jose Polo-Gomez at the University of Waterloo and the Perimeter Institute for Theoretical Physics in Canada said, "A kugelblitz is a hypothetical black hole that, instead of forming from the collapse of 'ordinary matter' (whose main constituents are protons, neutrons, and electrons), is formed from concentrating humongous amounts of electromagnetic radiation, such as light."
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"Even though light does not have mass, it does carry energy," added Polo-Gomez. He said that Einstein's theory of general relativity proposes that energy leads to the creation of curvatures in space-time which result in gravitational attractions.
"Because of that, it is in principle possible for light to form black holes — if we concentrate enough of it in a small enough volume," the author said.
The team discovered that, even under the most extreme circumstances, it is not possible for pure light to reach the required energy threshold for forming a black hole.
(With inputs from agencies)