The black hole is one of the most fascinating and mysterious phenomena in the universe. It is a region of space where the gravitational pull is so intense that nothing, not even light, can escape from it. This extreme condition is the result of a star collapsing under its own weight, leading to a point of infinite density known as a singularity.
黑洞是宇宙中最引人入胜且神秘的天文现象之一。它是一个空间区域,那里的引力如此强烈,以至于连光都无法逃脱。这种极端条件是由恒星在自身重力作用下塌缩形成的,导致了一个被称为奇点的无限密度点。
The boundary of a black hole, called the event horizon, marks the point of no return. Once matter or radiation crosses this threshold, it is inevitably drawn into the black hole. Despite their non-luminous nature, black holes can be detected indirectly by observing the effects they have on surrounding matter and radiation.
黑洞的边界被称为事件视界,标志着不可返回的点。一旦物质或辐射穿过这个阈值,它就会被不可避免地吸入黑洞。尽管黑洞本身不发光,但科学家可以通过观察它们对周围物质和辐射的影响来间接探测它们。
Black holes are dense celestial objects predicted by the theory of general relativity and found in space. The gravitational pull of a black hole is so immense that the escape velocity within its event horizon exceeds the speed of light. Consequently, a black hole is a region of spacetime with such extreme curvature that not even light can escape from its event horizon. In 1916, German astronomer Karl Schwarzschild derived a vacuum solution to Einstein's field equations, indicating that if a static, spherically symmetric body has a radius smaller than a certain value related to its mass, a peculiar phenomenon occurs around it, creating an interface known as the "event horizon." Once something crosses this boundary, it cannot escape, not even light.