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black holes facts for kids

Since that discovery, LIGO as well as other facilities now know what to look for and have seen a lot of these same types of black hole mergers.The EHT (Event Horizon Telescope) is an international collaboration that involves a network of eight ground-based telescopes into a single Earth-sized dish. Black Hole Facts: 21-30. This is the kind of black hole that’s at the center of our galaxy, the Milky Way; it’s called Sagittarius A*. These were predicted by Albert Einstein’s general theory of relativity and are ripples in the fabric of space.LIGO detectors (The National Science Foundation’s Laser Interferometer Gravitational-wave Observatory) that are in Louisiana and Washington observed the gravitational waves.They found that the source of the waves was the result of a merger that happened 1.3 billion years ago between two orbiting black holes that spiraled into each other. Kids Fun Facts Corner # 1. Fun Facts about black holes. A black hole is a region of space from which nothing, including light, can escape. The “small but deadly” quote is perfect for stellar black holes.A stellar-mass black hole is formed when a star that has the mass of around 20 solar masses finally uses up all of its fuel that gives it nuclear fusion and then collapses under its own weight.The process of its collapse causes a supernova explosion that blows out all of the outer layers of the star. All rights reserved. # 2. The event horizon has constant gravity. A black hole is a region in space having such a high field of gravity that nothing can escape it. Facts about Black Holes for Kids: Black holes were first suggested in the 18 th century, but were considered to be a mathematical curiosity until 1964 when scientists found the first black hole that they named Cygnus X-1. Black holes don’t have the ability to emit any radiation on their own. It can even swallow entire stars. An astronaut could take a short trip near a black hole and return to

A common misconception of a black hole is that it attracts things and devours them. Anything that crosses the event horizon will never be able to leave.Classical physics dictates that nothing can escape a black hole, however, when the concepts of quantum mechanics are added, this idea can change a bit.Quantum mechanics indicates that each particle has an antiparticle, and this antiparticle has the opposite electric charge and the same mass as the particle.When the two particles meet, the antiparticle and particle pairs can destroy each other. The orbit that the black hole maintains is extremely close to the solar system where it lives.Albert Einstein had predicted the existence of black holes in his theory of relativity. The quantum mechanics theory isn’t accepted under classical mechanics.The problem with black holes is that they are very massive, but their density is so great that their size is smaller than the mass.They have extremely powerful gravitational forces, so powerful that almost nothing can escape their gravity.

But if anyone back on the spacecraft could observe the astronaut’s watch from far away, they’d see its hands slow down as the spacewalker got closer to the black hole. Fun Facts about Black Holes for Kids. Black holes distort time and space around them. A person falling into a black hole would be spagettified.

That’s why we can’t see black holes in space—they've gobbled up all the light. In 2019, the EHT caught a black hole image for the first time.This is the famous M87 black hole that’s around 55 million light-years away and has a mass that weighs over 6 billion sun masses. They’re up to one million times more massive than our sun. According to the general theory of relativity, it is the result of the curving of spacetime caused by a very dense mass. A stellar black hole’s mass can be up to twenty times greater than the sun’s mass and its size can fit inside a sphere with a 10-mile diameter.Astronomers think that the Milky Way galaxy may have dozens of stellar black holes in it.The biggest black holes are those defined as “supermassive.” These have a mass that’s greater than the combination of one million suns and they would fit inside a ball the size of the solar system.Scientists believe that every large galaxy has a center with a supermassive black hole. This is good news for us and the universe, otherwise we would see black holes wandering around and eating the planets and suns.

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