Leo and Shanshan Rodriguez Other considerations The person would experience spaghettification and most likely not survive being stretched into a long, thin noodle-like shape.Ī person falling into a supermassive black hole would likely survive. In other words, if the person is falling feet first, as they approach the event horizon of a stellar-mass black hole, the gravitational pull on their feet will be exponentially larger compared to the black hole’s tug on their head. This implies, due to the closeness of the black hole’s center, that the black hole’s pull on a person will differ by a factor of 1,000 billion times between head and toe, depending on which is leading the free fall. ![]() Thus, someone falling into a stellar-size black hole will get much closer to the black hole’s center before passing the event horizon, as opposed to falling into a supermassive black hole. The supermassive black hole at the center of our Milky Way galaxy, by contrast, has a mass of roughly 4 million solar masses, and it has an event horizon with a radius of 7.3 million miles or 17 solar radii. For a black hole with a mass of our Sun (one solar mass), the event horizon will have a radius of just under 2 miles. The radial size of the event horizon depends on the mass of the respective black hole and is key for a person to survive falling into one. Even light, the fastest-moving thing in our universe, cannot escape – hence the term “black hole.” Leo and ShanshanĪt the event horizon, the black hole’s gravity is so powerful that no amount of mechanical force can overcome or counteract it. ![]() The distance from a black hole’s center of mass to where gravity’s pull is too strong to overcome is called the event horizon. Anything that passes this point will be swallowed by the black hole and forever vanish from our known universe. The event horizon of a black hole is the point of no return. The second type is a supermassive black hole, with a mass of millions to even billions of times greater than that of our Sun.īesides the mass difference between these two types of black holes, what also differentiates them is the distance from their center to their “event horizon” – a radial distance measure. The first does not rotate, is electrically neutral – that is, not positively or negatively charged – and has our Sun's mass. ![]() There are two types of black holes that are relevant to our discussion. They can vary by size and be electrically charged, the same way electrons or protons are in atoms. The universe is littered with a vast zoo of different types of black holes. Leo Rodriguez and Shanshan Rodriguez 2 types of black holes A person falling into a black hole and being stretched while approaching the black hole’s horizon.
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