INTERESTING FACT
When the star ten times more massive than our own Sun, explodes (Supernova) it leaves behind the strangest phenomenon in the Universe. The Black Hole. After explosion what is left behind is heavy core of subatomic particles, a Neutron Star. It can be very small, but with enormous density. Scientists calculated that approximately one teaspoon of Neutron Star would weight around billions of tons. The gravitational pressure of this highly dense object is so large that it can bend fabric of time and space. This theory is based on Einstein's proposition that space and time are woven together in a flexible fabric. Massive objects like Sun warp the fabric of space and time and pull smaller objects like Earth. Very large Neutron Star can warp time and space fabric so much that it could create a hole where gravity is so strong that not even light could escape. Black Holes are pulling everything around them closer to the center of the hole. In some sense black holes are creators of the galaxies since they are pulling planets and stars towards the spiral center. Each galaxy has a Black Hole and occasionally galaxies collide together because of the gravitational pull from the larger black holes. It is expected that in 5 billion years Andromeda galaxy will collide with our Milky Way galaxy.
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My question though, is the mass going into the black hole. I imagine a highway traffic jam. So it's not a matter of how much matter it takes in, but rather the time in which it takes in. What happens to the 'backed up' matter?
Nope! Because if they did our universe wouldn't be expanding.
However, gravitational "strength" is directly proportional to mass, so what you are really asking is;
Are there things heavier than black holes?
And I dunno, there could be. Technically as far as we know a black hole can grow indefinitely, or if it runs of matter to absorb it shrinks.
Who knows?
heh.. that's cute. You cannot visit a black hole, its gravity is too great.
This is the point that light can no longer escape.
it may have little to do with objects inside.
In the Andromeda Galaxy there are new Blue stars within one light year of the Black hole.
There may be little information on the speed of rotation as this Galaxy is still a long way of, in spite of being the closest spiral Galaxy.
Just as the Sun has a Surface, the Black Hole will probably have a surface, but not necessarily at the 'Event Horizon'
What do we know of the orbits of these Blue Stars near the Black Hole? What do we know of the accretion disc that surrounds the Black Hole?
Einstein correctly predicted that light from a distant star would bend twice as much as would be predicted from the gravity alone. Thus we do know something about the Gravity of light. It may not be stated clearly just yet.
The General Relativity equation should be useful.
Everything that has mass has gravity. these things, no matter how small, have an impact on the fabric of space-time. the black hole is this concept taken to the extreme. as to explain the way we detect black holes, we do it through indirect observation. We look at the speed of objects that orbit the hole. We can go back to Newton and see that the closer an object is to the object with more mass, the faster it orbits.
Another fact is that black holes , at least at their creation, release gamma ray bursts. We can detect this.
We should also recognize the 'event horizon' of a black hole. If an object is inside this radius, it would most certainly be doomed. However, outside of this radius, the object would still be under the influence of the hole's gravity, but not so much as to seal it's fate.
So, yes we believe that there are black holes at the center of many galaxies. However, galaxies or not uniform. Irregulars exist that do not orbit a center of mass. And to believe that the centers of spirals,lenticulars, ect, are being pulled into the black hole is not entirely correct.
When Einstein postulated how much light from a distant star would bend when passing the sun, it was twice as much as would be explained from Gravity alone.
Supernova remnants may sometimes be a Black Hole.
This would be considered a small Black hole.
The center of our Galaxy is 30,000 light years away and is a much larger Black Hole.
This has Mass and is gradually drawing more stars and other matter into itself. Even though light can not escape this section of our Galaxy is rotating. The most dense portion with the highest rotation is in the center.
Excess energy is sent out in a perpendicular direction as x-ray beams. It is by studying these x-ray beams that we find out more about the Black Hole.
well.. then how come it is affected by the pull of black hole.if it doesn have any mass it should easily be able to pass through it ( hell !! it should be able to light up the black hole).so my point is may be its proven if that light does have mass but you cant say that it doesnt either. unless you can explain the affect of black hole to it.
Light is not matter, so it has no mass and it does not take up space. It IS, in fact, interesting that light is sucked into a black hole. You can not measure the mass or volume of light.
If you can, please tell me what the mass of light is. Also the volume, and the density. It would be greatly appreciated. Also, would you include how you did it?
All the information about black holes can be found at www.hubblesite.com > Explore Astronomy > Black Holes > (Watch the intro if you want or just skip it) > Black Holes Encyclopedia > Click on the links for the info
All the information about black holes can be found at www.hubblesite.com > Explore Astronomy > Black Holes > (Watch the intro if you want or just skip it) > Black Holes Encyclopedia > Click on the links for the info..
All the information about black holes can be found at www.hubblesite.com > Explore Astronomy > Black Holes > (Watch the intro if you want or just skip it) > Black Holes Encyclopedia > Click on the links for the info...
All the information about black holes can be found at www.hubblesite.com > Explore Astronomy > Black Holes > (Watch the intro if you want or just skip it) > Black Holes Encyclopedia > Click on the links for the info.
They know they exist because the objects around it move faster than objects around a star.