We can consider white holes and black holes to be the two sides of the same coin. A perfect pair of antonyms. White holes first found their place, like many others, in Einstein’s theory of relativity. But it was left just there until theorists began pondering over its existence quite recently.
What is a white hole?
Insight, a white hole looks exactly like a black hole. It has mass, probably a ring of dust and gas around it. But the similarities end there. According to Carlo Ravelli, a theoretical physicist at the Centre de Physique Theorique in France, “It’s only in the moment when things come out that you can say, ‘ah, this is a white hole,”.
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