White Holes: To the Universe (For Neophytes)

It's sounds nice that I am spending my summer holidays pretty well. Curled up with sci-fi books, bingeing snacks aside and never had the blues (sister's departure is exceptional). I recommend outlandish folks to read The Hitchhiker's Guide to the Galaxy. People say it as science comedy fiction but I never got that feeling till now...

A popular science comedy fiction, The Hitchhiker's Guide to the Galaxy, talks about Magrathea, a luxurious planet created by its people, Magratheans. The created this planet using the matter extracted from white holes.

White holes are fascinating astronomical objects, but they are just a fragment of imagination. Things beyond imagination are quite fascinating.

White holes are just the opposite of black holes. A black hole is a region which exhibit intense gravitational field such that no matter or even electromagnetic radiation such as light can escape from the Event Horizon. 

In layman's terms, event horizon is called the 'point of no return' where no matter can escape beyond this boundary. Black holes are created when stars that are much massive and older than Sun die in a supernova.

Unlike black hole, a white hole is a region that radiates light, where matter and even light can escape from it. Decades ago, both were seen as conceptual but now, black holes are proven to exist in the universe. Recently, a black hole was spotted in the heart of Milky Way, our home galaxy.

Stephen Hawking's black hole theory defines black hole as a huge mass in a small space, where gravity is powerful and light can never escape from it. Hence, the blackness.

In 2014, Carlo Rovelli, a theoretical physicist, stated that black hole and white hole can be connected in this way: When a black hole dies, it could eventually become a white hole itself. But it contradicts the theory laid by Stephen Hawking.

In 1970, Stephen Hawking stated in his theory that a black hole would evaporate mass by emitting radiation, so that a black hole that lose more mass that it gain may shrink and vanish. 

The aforementioned statement clearly shows that there is no possible way for the existence of white hole from a black hole as a black hole would vanish by evaporating its mass.

But if we see this shrinking black holes in terms of quantum (indivisible particles), few particles would be left remained as they cannot divide further. This can lead to the formation of white hole. This idea was suggested by Carlo Rovelli and his team.

It seems to be a skeptical approach, but it really isn't. In the world of astrophysics, the existence of white holes still remains as a question. Let us keep exploring to unravel its mysteries. 

"The most beautiful thing we can experience is the mysterious. It is the source of all true art and science."

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#whitehole #blackhole #getalongwithnerd #nerdytalks