Black Hole Near to our Planet Earth || Find out What's going on || Things That Changed the World

 

Black Hole Near to our Planet Earth || Find out What's going on || Things That Changed the World




The black hole that is near to Our Planet Earth. Astronomers announced on May 12, 2022, that they have finally assembled an image of the supermassive black hole, at the center of our galaxy. “This image shows a bright ring surrounding the darkness, the telltale sign of the shadow of the black hole.” The black hole, known as Sagittarius A, appears as a faint, silhouette amidst the glowing material that surrounds it. The image reveals the turbulent, twisting region immediately surrounding, the black hole in new detail. A planet-spanning network of radio telescopes, known as the Event Horizon Telescope, worked together to create this much-anticipated look at the Milky Way’s giant. At 27,000 light-years away, the behemoth is the closest giant black hole to Earth. That proximity means that Sagittarius A, is the most-studied supermassive black hole in the universe. Yet Sagittarius A, and others like it remain some of the most mysterious objects ever found. That’s because, like all black holes, Sagittarius A is an object so dense that its gravitational pull won’t let light escape. Black holes are “natural keepers of their own secrets,” Their gravity traps light, that falls within a border called the event horizon. Sagittarius A, feeds on hot material pushed off of massive stars at the galactic center. That gas, drawn toward Sagittarius A, by its gravitational pull, flows into a surrounding disk of glowing material, called an accretion disk. The disk, the stars and an outer bubble of X-ray light “are like an ecosystem,” “They’re completely tied together.” That accretion disk, is where the action is — as the gas moves within immensely strong magnetic fields — so astronomers want to know more about how the disk works. In fact, the accretion disk around Sagittarius A, seems to constantly flicker and simmer. This variability, the constant flickering, is like a froth on top of ocean waves, By combining about 3.5 petabytes of data, or the equivalent of about 100 million TikTok videos, captured in April 2017, researchers could begin to piece together the picture. To tease out an image from the initial massive jumble of data, the EHT team needed years of work, complicated computer simulations, and observations in various types of light from other telescopes. Those “multiwavelength” data from the other telescopes, were crucial to assembling the image. “By looking at these things simultaneously and all together, They were able to come up with a complete picture,” Ultimately, a better understanding of what is happening in the disk so close to Sagittarius A, could help scientists learn how many other similar supermassive black holes work.





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