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Black holes on a collision course

Black holes that tend to collide

Scientists say Chandra provides first evidence that two such mysteries can coexist in one galaxy. Scientists say , the Chandra telescope confirmed for the first time that two black holes can exist in the same galaxy.

In a very bright galaxy 400 million light-years away, two black holes are drifting toward each other and in millions of years will merge with an eruption of energy and a burst of gravitational waves that could warp the very fabric of space, astronomers said Tuesday. Astronomers said on Tuesday that in a bright galaxy 400 million light-years away from the earth, two black holes are approaching each other and will merge into one in millions of years and erupt a large amount of energy. Energy, the resulting gravitational waves may affect every corner of the universe.

THE SCIENTISTS said the Chandra X-ray Observatory has found the first evidence that two immense black holes can coexist in the same galaxy and that they are moving toward each other for an eventual merger. "Scientists" said, The Chandra X-ray telescope has found preliminary evidence that two giant black holes can exist in the same galaxy at the same time, and that they are moving closer to each other and will eventually merge into one.

The double black holes were found in a bright, highly active galaxy known as NGC6240, about 400 million light-years from the Earth. Named NGC 6240, it is about 400 million light-years away from Earth.

Astronomers studied NGC6240 because it produced unexplained bursts of X-rays that appeared to come from one of two nuclei at the galactic center. Images collected by radio, infrared and optical observations showed two bright spots, but did not pinpoint the origin of the X-rays. The reason why astronomers study NGC6240 is that they discovered that there are two nuclei in the center of the galaxy, one of which constantly bursts out unexplained X-rays. Images collected from radio, infrared and optical observations showed two bright spots in the galaxy, but the source of the X-rays could not be pinpointed.

When Chandra, with its sensitive X-ray detectors, focused on the nuclei, astronomers hoped it would tell them whether either of the two points of activity were black holes. Detector, astronomers pointed it at the core of the galaxy, hoping to determine whether one of the two active points is a black hole.

"Much to our surprise, we found that both were active black holes," Stefanie Komossa of the Max Planck Institute in Germany, said in a statement. "We were surprised to find that both are active black holes," said Komossa.

Finding two black holes in one galaxy, said Komossa, "supports the idea that black holes can grow to enormous masses in the centers of galaxies by merging with other black holes." Komossa said that the scientific discovery of the coexistence of two holes in the same galaxy proves that black holes in the core of galaxies can develop into massive matter by merging with each other.

An artist's conception shows two black holes whirling around each other at the center of a galaxy.

Guenther Hasinger, also of Max Planck, said the Chandra images captured the unmistakable markings of two black holes - high-energy photons swirling around the dense black hole centers and X-rays spewing out from iron atoms being pulled into the center at a high rate of speed. Guenther Hasinger of Max Planck said that the images taken by Chandra captured signs that can confirm the coexistence of two black holes, that is, high-energy energy swirling around the center of a very dense black hole. Photons, X-rays ejected from iron atoms, are sucked into the center of the black hole at high speed.

Komossa and Hasinger are co-authors of a study submitted for publication in the Astrophysical Journal Letters.

The two black holes in NGC6240 are now about 3,000 light-years apart and are expected to merge some time in the next few hundred million years, the researchers said. The merger will be accompanied by an eruption of radiation and a burst of gravitational waves that will spread throughout the universe, causing ripples in the fabric of space, the astronomers said. According to researchers, the two black holes in NGC6240 are currently about 3,000 light-years apart and are not expected to be separated for hundreds of millions of years. When they merge with each other, a large amount of radiation and gravitational waves will be generated, impacting everywhere in the universe and causing ripples in space.

The gravitational ripples could cause minute changes in the distance between any two points in the universe, they said. .

In another study, French and Argentine astronomers said that observations by the Hubble Space Telescope and ground-based telescopes have detected a stellar black hole streaking across the Milky Way at about 250,000 miles an hour. A companion star is being dragged along and slowly devored by the black hole, according to scientists at the French Atomic Energy Commission and the Institute for Astronomy and Space Physics in Argentina. and ground-based astronomical telescopes, they discovered that a planet's black hole was traveling through the Milky Way at a speed of 250,000 miles per hour. According to scientists from the French Atomic Energy Commission and the Argentinian Institute of Astronomy and Space Physics, there is another star trailing behind the black hole, and it is slowly being eaten away by the black hole.

The astronomers said the stellar black hole may have been created by an exploding star in the inner disk of the Milky Way. The black hole is 6,000 to 9,000 light years away, the researchers said. A report on the observations appear Tuesday in the journal Astronomy and Astrophysics.

A black hole is a point in space that is so dense with matter that its gravitational field will not let anything - not even light - escape. Stellar black holes, equal to 3.5 to about 15 solar masses, can be formed by the collapse of a single massive star. But galactic black holes, such as those in NGC6240, are much larger, equal perhaps to millions of solar masses, and are usually at the center of galaxies.The Milky Way, home galaxy of the sun and its planets, is thought to have a black hole at its center.With its immense gravitational pull, a black hole can suck in gas, dust and other matter from the surrounding space. Entire stars can be stripped and pulled into the bottomless maw. As it spirals in at near light speeds, matter captured by a black hole heats by millions of degrees and gives out intense radiation in several parts of the spectrum, including X-rays. The Orbiting Chandra observatory is able to detect these X-rays and relay the data to Earth for study by astronomers. A black hole is a point in space that is so dense that no matter, not even light, can escape its gravitational pull. The disintegration of a single giant star is enough to create a planetary black hole with a mass equivalent to 3.5 to 15 suns. But galactic black holes like the one in NGC 6240 are much larger, with a mass equivalent to millions of suns, and are typically located at the centers of galaxies. The Milky Way is home to the sun and its nine planets. Scientists believe that there is a black hole at the center of the Milky Way. Relying on the strong gravitational pull, black holes can suck in gas, dust and other materials from the surrounding space. This bottomless pit even sucks in the entire planet after decomposing it.

When matter is captured by a black hole and is rotated and sucked into the hole at nearly the speed of light, it releases heat that can reach millions of degrees and emits different intense rays, including X-rays. The orbiting Chandra telescope can detect these X-rays and transmit the data back to Earth for astronomers to study.

NASA's Chandra X-ray Observatory was launched and deployed by the space shuttle Columbia on July 23, 1999. The spacecraft was launched aboard.

Circle of Life

Facing death, Jeff Cross and Lily Cheng had run out of options. But a rare "domino" liver transplant, involving a living donor, gave both a future.

Facing death, Jeff Cross and Cheng Lili had no other choice. But a rare "domino" liver transplant (involving a living organ donor) gave the two men a new lease of life.