I know that there's very little info on blackholes and they are still basicly theoreticle but in theory, what happens to light after it enters a blackhole?
2006-11-23 14:54:34 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
As a star gets older it fuses lighter elements into heavier ones. Every moment of a stars life is a delicate balance of the energy from the fusion reactions tryong to blow the star apart while the gravity of the star's mass tries to crush it inward.
There will be a point in every star's existance that the energy of nuclear fusion is no longer enough to maintain the balance and a new equilibrium of sought. When our sun runs out of hydrogen in roughly 5 billion years it will have to switch to helium and become a red giant star for example. When the star runs out of fusionable elements, it "dies". Depending on how much mass the star had is what happens next.
In the case of the largest and most massive of stars the result is very dramatic. Without fusionable elements, the gravity crushes the mass of the star down to a size so small that the velocity required to overcome the gravitational pull and escape the surface of the star is greater then the speed of light. Nothing can move faster then light, thus nothing can escape this star.
This is what a black hole is. You know how the shuttle has to be moving about 11 kilometers a second to escape Earth's pull? If the Earth was a Black Hole, the shuttle would have to be moving faster then the speed of light to escape. This is impossible.
As for whether or not they exist, it's true that they are hard to spot. However if you watch the matter surronding a black hole there are signs. In Cygnus X-1, there is an object "eating" a blue giant star that may just be a black hole. In fact, astrophysicists have hypothesized that any single star that has more mass then about 45 Suns will eventually become a Black Hole. The theory is that if these stars are left alone, becoming a Black Hole is inevitable.
As for what happens to light, we know that light goes in, it doesn't come out, and as it gets close it shifts toward red. That's about it.
2006-11-23 15:59:19 · answer #1 · answered by moronreaper 2 · 1⤊ 1⤋
no ones knows the light just disappears, in the middle of a black hole there is somethign called singularity the breaking point of the space time continual
2006-11-24 19:05:29 · answer #2 · answered by Bhaumik P 1 · 0⤊ 0⤋
A black hole is the last stage of a star if it supernova's
we cannot see black holes because the star has been packed so hard together that it's gravity is so strong not even light can escape it.
for anyone who wonders; I'm 10 yrs old. Seriously!
2006-11-23 23:36:02 · answer #3 · answered by Kashbox 1 · 0⤊ 2⤋
It is very stupid to ask that ... if we knew it, it wasn't a so called black hole anymore. So it seems you don't know anything about black holes. Go and learn what a black hole iexactly is, before you ask questions about it.
2006-11-24 04:10:20 · answer #4 · answered by jhstha 4 · 0⤊ 0⤋
no one knows what happens to anything after it enters a black hole, some people say that it is a sci-fi portal to another place in space and maybe time
what i believe, is that the intense gravity implodes it
2006-11-23 23:03:32 · answer #5 · answered by altmetal4christ 3 · 0⤊ 1⤋
they do exist. everything pulled in by the force of gravity from the hole is sucked in towards one single point at a high rate of speed and compacted into a small spec including light and alll debris. My science teacher once told me the whole universe would shrink down to a dot when it ends and then explode and eventually reform but i dunno about that part....
2006-11-24 03:45:30 · answer #6 · answered by C.J. 2 · 0⤊ 1⤋
i read a lot about black holes in many places,but all they mention is
"even light cannot escape the gravitational pull of black hole and is pulled towards it",i don't think they mentioned about light going into black hole.well according to new researches,all the matter that is dragged into black is converted into energy and is released in form of hawking radiations(i guess).
2006-11-23 23:23:13 · answer #7 · answered by raven 3 · 1⤊ 1⤋
Noone knows. but some scientists think that black holes become more powerful after they suck up something. When they suck up light maybe they will have more gravity to suck up things more easily.
2006-11-23 23:06:33 · answer #8 · answered by g1r2a3c4e5_korea 1 · 0⤊ 1⤋
I KNOW. It turns into mass and increases in event horizon diameter of the black hole.
2006-11-24 02:02:50 · answer #9 · answered by St Lusakan 3 · 0⤊ 1⤋
no one knows. There had been scientists who have postulated that they lead to a parallel dimension.
2006-11-23 23:00:36 · answer #10 · answered by QuiteNewHere 7 · 0⤊ 1⤋