spotwestern.blogg.se - A journey into a black hole

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This will appear in Google' search results and when people share your Article across other websites and social channels. ET: This article has been amended to correct the spelling of Stephen Hawking's name.Describe the content of your Article. There is no past because you can never get out."Ĭorrection,, 8:45 a.m. "But it's interesting to see how your concept of time would change: as soon as you're past the event horizon, any direction in space is also the future. "There is a chance that someone falling into that black hole and working their way down this gradient of gravity could live their entire human lifetime traveling from relative safety ," Smethurst said. Depending on the size of the black hole, the distance between the event horizon and the singularity may be immense: the largest black hole we have discovered so far, TON 618, is more than 40 times wider than the distance from Neptune to the Sun. The amount of time between crossing the event horizon and spaghettification may not be as short as you might expect, however. You would appear frozen forever in space and time," said Smethurst. And so would never actually see you cross that event horizon. The light signals from that would actually take longer and longer to get to you between each flash because of the force of gravity, essentially almost like slowing down the light as it got closer and closer to the black hole. "Say you had a little beacon on your spacecraft that was like a little lighthouse flashing every 30 seconds. Your friend watching you fall in, though, wouldn't see that at all. Huge Sunspot Pointed Straight at Earth Has Developed a Delta Magnetic Field.Laser Beam Sends Electricity Nearly 100 Feet Through the Air.

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Because at the minute, under our understanding of laws of physics, we have no idea what's beyond the event horizon," she said. And then beyond that, we don't know what you would see at all-whether it would be incredibly bright in there, whether it would be complete darkness, or whether you'd see some other form of matter that we just don't know. "As you fall beyond the event horizon, you will have all the light of the universe bent into your eye, one brief moment. Black holes do this sort of weird warping of light that makes them look bigger than they appear," Smethurst explained. ", you would see the black hole getting bigger and bigger and bigger. What you experience and witness as someone falling into a black hole would be very different to what a bystander, safely away from the event horizon, would see. "Spaghettification essentially means that the gravity at your feet would be stronger than your head, and you would get stretched out like spaghetti as you fall closer and closer to the black hole. If you somehow fell into a black hole, on the journey between these places, something called spaghettification would happen to your body. Beyond the event horizon is eventually the singularity, the inconceivable single point where the immense mass of the black hole is located. So they light up like Christmas trees," Smethurst said.īlack holes have an event horizon, which is the point of no return for all matter and energy: once you've passed that, there is no escape from gravity. It doesn't just start to glow in optical light, it's also X-ray light, UV light, and you also get some radio emission as well from it. "You have material that is spiraling inwards towards it, that is accelerated to huge speeds, which heats up and starts to glow like iron heating on a forge. It's not necessarily the black hole itself, because they're these prisons for light and you can't get any light from the black hole, but the region around the black hole." "They are some of the brightest objects in the entire universe. Becky Smethurst, someone falling into a blackhole would get spaghettified, but would appear frozen in time to an outside observer.