2015年2月27日 · What exactly is a black hole? Put simply, a black hole is a spot in the universe where there is a large gravity pull. Now, here are 10 fun facts about black holes! 1. You Can’t Directly See a Black Hole. A black hole is called a black hole because of it’s color, especially since light can’t escape.

2020年9月8日 · A black hole is an astronomical object with a gravitational pull so strong that nothing, not even light, can escape it. A black hole’s “surface,” called its event horizon, defines the boundary where the velocity needed to escape exceeds the speed of …

2024年12月3日 · Black holes are some of the most mysterious and intriguing objects in the universe. But what exactly are black holes? These cosmic phenomena are regions in space where gravity is so strong that nothing, not even light, can escape.

2022年5月6日 · Black holes are some of the strangest and most fascinating objects in the universe. They're extremely dense, with gravitational forces so strong, that nothing, not even lights, can escape once...

Black holes are extremely dense pockets of matter, objects of such incredible mass and miniscule volume that they drastically warp the fabric of space-time. These monsters of the universe are nearly undetectable unless they are feeding on space stuff or tugging on nearby stars.

2024年5月8日 · Astronomers tracked the orbits of several stars near the center of the Milky Way to prove it houses a supermassive black hole, a discovery that won the 2020 Nobel Prize. When very massive objects accelerate through space, they create ripples in the fabric of space-time called gravitational waves.

2019年9月23日 · Here are 10 things you might want to know about black holes. This artist concept illustrates a supermassive black hole with millions to billions times the mass of our Sun. Supermassive black holes are enormously dense objects buried at the hearts of galaxies. A black hole is an extremely dense object in space from which no light can escape.

Black holes are among the strangest things in the universe. They are massive objects – collections of mass – with gravity so strong that nothing can escape, not even light. The most common types of black holes are the stellar-mass and supermassive black holes.

2025年2月25日 · Black hole, cosmic body of extremely intense gravity from which nothing, not even light, can escape. It can be formed by the death of a massive star wherein its core gravitationally collapses inward upon itself, compressing to a point of zero volume and infinite density called the singularity.

One type of black hole is born when massive stars run out of fuel and explode in supernovae. Not so rare. Most Milky Way-sized galaxies have monster black holes at their centers. Our is called Sagittarius A* (pronounced ey-star), and it’s 4 million times the Sun’s mass. NASA's home for exploring everything beyond our solar system.