:an invisible area in outer space with gravity so strong that light cannot get out of it(外太空的)黑洞— often used figuratively常用作比喻
The project turned out to be a financial black hole. [=something that constantly uses up a large amount of money without producing a good result]这个项目结果成了个花多少钱都填不满的黑洞。
: a celestial object that has a gravitational field so strong that light cannot escape it and that is believed to be created especially in the collapse of a very massive star
Recent Examples on the WebQuantum mechanics prevent neutrons from occupying the same energy state in close proximity, and this prevents the neutrons from getting any closer and so blocks the collapse into a black hole. Jennifer Ouellette, Ars Technica, 4 Aug. 2022 The resulting remnant stellar core is crushed by gravity into a black hole, says NASA. Bruce Dorminey, Forbes, 11 June 2022 In the case of Hawking radiation, that warm fuzzy effect is essentially a result of particles being pulled into a black hole by gravity. Joanna Thompson, Scientific American, 20 May 2022 What keeps Everything Everywhere All at Once from falling into a black hole of sprawling thought is its wonderful central performances, and the emotional through line that Yeoh and Quan follow amid all the chaos. David Sims, The Atlantic, 25 Mar. 2022 So far, only a couple of potential PeVatrons have been tracked down in the Milky Way: the supermassive black hole at our galactic center, and a star-forming region that resides on the outskirts.WIRED, 28 Aug. 2022 Although no light escapes from the black hole itself, the incredibly hot material spiraling into it emits huge amounts of mid-infrared light. Fionna M. D. Samuels, Scientific American, 21 July 2022 Researchers also detected the telltale signs of an active supermassive black hole in the topmost galaxy — distinguishable only by material swirling around the cosmic behemoth. Denise Chow, NBC News, 12 July 2022 Keep that core reason in mind, and don’t take them down a convoluted, black hole of information. Josh Perlstein, Forbes, 29 June 2022 See More