2023-07-18 23:35:52
According to foreign media reports, the US National Aeronautics and Space Administration (NASA) recently announced that the James Webb Space Telescope (James Webb Space Telescope) has detected the most distant black hole so far from the earth, with a mass of regarding 9 million times that of the sun and an age of more than 13 billion years. NASA has announced the discovery of the farthest black hole to date. (Online picture @美国航空民局官网 Press Release Screenshot) ???? @NASAWebb detected the most distant active supermassive black hole to date! pic.twitter.com/7g9ls4Ov0v — NASA (@NASA) July 6, 2023 NASA pointed out that this The black hole is located in the ancient galaxy “CEERS 1019”, which formed regarding 570 million years following the Big Bang. The mass of this black hole is much smaller than that of other black holes in the early universe, regarding 9 million times the mass of the sun. 1 The mass of the sun is regarding 333,000 times that of the earth. Universe diagram. (GETTY PHOTO) Currently, the CEERS 1019 black hole is the most distant active black hole ever observed. NASA said, “This number is much lower than the mass of other detected black holes in the early universe. These behemoths are usually more than 1 billion times the mass of the sun, and because of their higher brightness, they are relatively easy to detect.” In Webb Such faint, distant black holes are only detectable with the help of advanced equipment in telescopes. “Schematic diagram of a black hole. (GETTY IMAGES) The CEER 1019 galaxy appears as a string of 3 bright spots, unlike the single disk of other galaxies. Jeyhan Kartaltepe, a member of the CEERS team at the Rochester Institute of Technology in New York, said galaxy mergers may increase the activity of black holes, allowing stars to multiply. The researchers also pointed out that the black hole in CEERS 1019 may shortly become the most distant active supermassive black hole on record. Universe diagram. (GETTY photo) The latest photos released by NASA show that the extremely sophisticated X-59 supersonic aircraft appeared in the “Skunk Works” (Skunk Works) experiment under Lockheed Martin. area, it appears that a test flight is regarding to take place. Lockheed Martin picture The X-59 has been transferred from the Palmdale, California (Palmdale) assembly plant to the side of the test machine runway, which means that it has begun ground testing. It will start with starting the engine, then test skids, and then go to the end of the runway to increase the horsepower , into the blue sky. Lockheed Martin’s picture of the X-59 rushing into the blue sky is just the first step in the work. It is not the point that it can fly, and it is reasonable to be able to go supersonic. The important thing is “whether it is quiet enough or not.” Usually, the moment a supersonic aircraft crosses the speed of sound, the huge shock wave it produces sounds like an explosion, so it is called a sonic boom. The problem with sonic booms is not only that they are loud, but also that the shock wave will cause huge vibrations when it reaches the ground. It is a bit like an instantaneous earthquake, and doors and windows may be broken. According to the vision of the R&D engineers, the X-59 adopts the latest shock reduction technology, which is expected to produce only a slight impact on the ground, which may be equivalent to the “bang” sound of a nearby car door closing. NASA issued a statement stating: “After the official test flight of the X-59, it will fly over several communities and design sound monitoring stations on the ground to understand how much sound the ground hears when the X-59 is flying at supersonic speed. NASA will objectively provide this data as a regulatory reference for future commercial supersonic flight.” Image by Lockheed Martin
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