2006-09-14 17:35:41 · 5 answers · asked by outwardwhisper 2 in Science & Mathematics ➔ Astronomy & Space
Black holes are the evolutionary endpoints of stars at least 10 to 15 times as massive as the Sun. If a star that massive or larger undergoes a supernova explosion, it may leave behind a fairly massive burned out stellar remnant. With no outward forces to oppose gravitational forces, the remnant will collapse in on itself. The star eventually collapses to the point of zero volume and infinite density, creating what is known as a " singularity ". As the density increases, the path of light rays emitted from the star are bent and eventually wrapped irrevocably around the star. Any emitted photons are trapped into an orbit by the intense gravitational field; they will never leave it. Because no light escapes after the star reaches this infinite density, it is called a black hole.
2006-09-14 17:53:15 · answer #1 · answered by bearcat_basketballfan 2 · 0⤊ 0⤋
Everyone has a theory but, no one knows for sure.
Most scientists think that since it acts like gravity, which they don't know the cause of, it must be gravity and if it's gravity, it must be caused by some form of very dense matter, which they don't know the origin of, because matter has gravity.
It may be something that they don't know about yet or refuse to consider, like a vacuum which also initially acts like gravity.
Perhaps we can spend a couple hundred million dollars to send an unmanned craft into a black hole to see what happens.
2006-09-15 02:08:15 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Loosely speaking, a black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull. Since our best theory of gravity at the moment is Einstein's general theory of relativity, we have to delve into some results of this theory to understand black holes in detail, but let's start of slow, by thinking about gravity under fairly simple circumstances.
2006-09-14 17:45:08 · answer #3 · answered by Anonymous · 0⤊ 0⤋
a black hole is the imaginary spot where our universe and our anti-universe tranfer energies. they exist only when these tranfers of energy(mass>quanta or quanta>mass) take place.
this point is often refered to as the singularity. singularity is the point at which mass is totally balanced and quanta enerygy is no longer created.
2006-09-14 18:26:21 · answer #4 · answered by Josh L 2 · 0⤊ 0⤋
Whoopi Goldberg
Nobody knows what caused it,a mystery
2006-09-14 17:38:28 · answer #5 · answered by 4 strings 7 · 0⤊ 2⤋