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Black holes are fascinating and mysterious celestial objects that captivate human imagination. They arouse both fear and curiosity, because their very nature challenges our understanding of physics. In 2015, the Hubble telescope captured some of the most beautiful images of the universe, offering us an overview of these phenomena. However, few subjects provoke as many debates among scientists and the general public as the question of what would happen if one fell into a black hole. This article explores the different perspectives on the issue, according to the research of two physicists.
The threat of “spaghettification” in small black holes
The black holes of stellar mass, which have a mass similar to that of our sun, represent a fatal threat for anyone who would approach it. Physicists Leo Rodriguez and Shanshan Rodriguez explain that this type of black hole has an intense gravity which varies strongly over a short distance. This variation causes a phenomenon known as “spaghettification”.
When a person crosses the horizon of the events of a small black hole, the difference in gravitational force between their feet and their head becomes extreme. This leads to a stretch of the human body until it is tearing. The severity, by brutally increasing over a few meters, leaves no chance of survival. It is an inevitable and tragic death for anyone who would venture into such a celestial object.
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Supermassive black holes: a different experience
Unlike small black holes, supermassive black holes, like the one located in the center of our galaxy, have a radically different experience. These cosmic giants have a mass of millions of times higher, which stretches space on a much larger scale. The horizon of events is then much further from the center, sometimes millions of kilometers.
Under these conditions, a person could theoretically penetrate a supermassive black hole without feeling a major difference in gravity between the ends of their body. Spaghettification would not take place. In fact, entering the black hole could go unnoticed, without pain or particular sensation. However, this does not mean that experience would be without consequences.
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Accretion discs: a formidable obstacle
Most black holes are surrounded by an accretion disc, made up of extremely warm and turbulent materials. This disc is made up of gas, dust and sometimes even disintegrated stars. Crossing this region would be dangerous and uncomfortable, making the exploration of a supermassive black hole more complex than it seems.
To hope for a smooth entry, the black hole should be isolated and devoid of accretion disk. Such a situation is rare, but not impossible. However, even in the best of cases, once the event horizon has passed, the return becomes impossible. No information can be transmitted beyond this barrier, condemning any explorer to remain prisoner forever.
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What implications for our understanding of physics
The possibility of exploring a black hole, although theoretical, raises exciting questions about the nature of the universe. If a scientist could observe the interior of a black hole, he could potentially reveal many mysteries of modern physics. However, the impossibility of returning to share these discoveries considerably limits our ability to take advantage of them.
Research on black holes continue to enrich our understanding of the fundamental laws of gravity and general relativity. They push us to extend the borders of our knowledge and question our current hypotheses. In this quest for knowledge, what new tracks could we explore to really unravel the secrets of black holes?
This article is based on verified sources and the assistance of editorial technologies.
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