类星体是1963年发现的银河系外能量巨大的遥远天体,其中心是猛烈吞噬周围物质的质量在千万太阳质量以上的超大质量黑洞。黑洞本身不发光,但由于强大的引力,周围物质在快速落向黑洞的过程中以类似“摩擦生热”的方式释放出巨大的能量,使类星体成为宇宙中最耀眼的天体。 Quasar is a distant celestial body with huge energy discovered outside the Milky Way in 1963. The quasar is centered on a supermassive black hole that violently devours the surrounding masses with masses of tens of millions of solar masses. The black hole itself does not emit light, but due to the strong gravitation, the surrounding matter releases a huge amount of energy in the process of rapidly falling into a black hole in a manner similar to that of “friction heat”, making the quasar the most dazzling object in the universe.