If you fell into a black hole accourding to einstein

#If you fell into a black hole accourding to einstein full#

In other words, as you approached a black hole, it would literally look like a hole of total blackness silhouetted against the backdrop of space, with the light from the surrounding environment being heavily distorted. From very far away, it appears to be the size that it actually is, as youвЂ™d expect. This spherical region, known as the event horizon, is not a physical entity, but rather a region of spaceвЂЉ-вЂЉof a certain sizeвЂЉ-вЂЉfrom which no light can escape. (Hence the вЂњblackвЂќ in the moniker вЂњblack holes.вЂќ) Matter, magnetic fields, and accelerated particles combine to create the visual show around black holes, which we have never yet seen only calculated and visualized through artistвЂ™s impressions like this. But if you looked with your eyes, instead of a gas cloud, star or neutron star, there would be a completely black sphere in the center, from which no light will be visible. Spacetime may be curved, but all you can tell at your distant location is that itвЂ™s due to the presence of a mass, not what the properties or distributions of that mass are. In fact, when youвЂ™re very far away from a black hole, its gravity is indistinguishable from any other mass, whether itвЂ™s a neutron star, a regular star, or just a diffuse cloud of gas.

When youвЂ™re very far away from a black hole, the fabric of space is less curved. Image credit: Pixabay user JohnsonMartin. While normal masses curve this spacetime significantly, only black holes will actually curve it an infinite amount at the point(s) where a singularity exists. But, thanks to EinsteinвЂ™s general relativity, weвЂ™re up to the challenge. The fabric of the Universe, spacetime, is a tricky concept to understand. The reason has everything to do with EinsteinвЂ™s greatest achievement, celebrating itвЂ™s 100th anniversary this year: all because of how a black hole, unique among masses, bends spacetime. It turns out that General Relativity is a very harsh mistress, particularly when it comes to black holes. ThereвЂ™s a very, very good reason why once you hurtle over that invisible barrier, you can never get out! This remains true no matter what class of black hole you fell into, not even if you had a spaceship capable of accelerating in any direction at an arbitrarily large rate.

#If you fell into a black hole accourding to einstein full#

This object in particularвЂЉ-вЂЉSagittarius A*вЂЉ-вЂЉis a surefire candidate for a black hole, something we can tell directly by measuring the stars which orbit it for two full decades now.Д«ut there are a number of very counterintuitive things that happen as you get near a black holeвЂ™s event horizon, and things get even worse once you cross it. Image credit: X-ray: NASA/UMass/D.Wang et al., IR: NASA/STScI.ДЄt the center of our own galaxy, weвЂ™ve been able to observe the motions of stars around a central point mass with a mass around 4 million solar masses that emits no light at all. We have not yet directly imaged the black hole there, but the Event Horizon Telescope, from 25,000 light years away, aims to change that. The supermassive black hole at the center of our galaxy, Sagittarius A*, flares brightly in X-rays whenever matter is devoured. But what would you see as you fell in? Would the lights stay on, or would the Universe go dark? At last, physics has deciphered the answer, and itвЂ™s gorgeous. The key property surrounding the event horizon, that light can never escape from within it, sets up a boundary in space: once you cross it, youвЂ™re doomed to hit the central singularity.

Many physical black holes have been identified, from stellar-mass scale ones in our own galaxy to supermassive ones at the centers of the majority of galaxies, many millions or even billions of times the mass of our Sun. Objects so dense, where gravitation is so strong, that nothing, not even light, can ever escape from it. Would there be only blackness past the event horizon? Or something more?Д«lack holes are some of the most perplexing objects in the entire Universe. While black holes are commonly shown as dark regions that appear to eat the disk-like matter around them, what youвЂ™d actually see is vastly different than this representation.