2006-11-24 06:24:55 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
No one knows for sure what creates gravity, we only know that it is a force since it causes an acceleration, and what the conditions are for it to be present; which is any amount of mass. Everything creates gravity, including you and me, but it is only noticeable with large masses such as the earth, sun, and well, black holes. If we knew what creates gravity, a whole lot of other questions could then be answered, such as if time travel is really possible. A black hole could suck the the sun in but that is seriously unlikely to happen since one of any meaningful size is hundreds of light years away. There are however very, very, very tiny black holes that likely occur naturally in our upper atmosphere as solar particles collide with our air. Next year in Europe, an experiment at a particle accelerator will attempt to prove the math behind this to confirm the mini-black holes' existence. Bottom-line... after next year, we might be able to tell you something more about gravity and what creates it.
2006-11-24 08:47:49 · answer #1 · answered by acl1086 1 · 0⤊ 0⤋
Everything which has mass has gravity. The gravitational pul of a black hole is so great that nothing not even light can escape. The nearest black hole I think is in the center of the galaxy and our sun is on the outer edge of the galaxy. The galaxy is aproximately 100 thousand light years across which makes the black hole 50 thousand light years away. It would be eons before it gets pulled into the black hole at the center of the galaxy if ever. Our galaxy would more than likely colide with the andromeda galaxy before then. But that's eons away as well.
2006-11-24 06:42:18 · answer #2 · answered by ikeman32 6 · 1⤊ 0⤋
The mass of earth itself creates gravity. Any independant body of mass will create a source of gravity, even ourselves.
When standing on earth we will attribute to earth's mass and its gravity. An airplane which is totally seperate from earths mass/contact will create its own gravity even though it will be so small that it would be hard or impossible to measure because it is inside earths gravitational pull.
But, if this same plane were floating in space away from any influence or gravitational distubances then we would see this microgravity at work and would be able to measure it. The plane would attract dust and debris to it in the same way a comet is built. After billions of years the plane may no longer be visible and due to the extra mass from the dust its gravity will also be more intense.
It is possible to create anti-gravity on earth by holding a body of mass above another body of mass.
2006-11-24 09:12:55 · answer #3 · answered by aorton27 3 · 0⤊ 0⤋
earths mass creates gravity.
and yes a black hole can suck the sun in but thing is that if it goes on sucking stars and planets its density (xtreeeemeeely high) will become too much and it will explode.
2006-11-24 06:27:26 · answer #4 · answered by Mugen 2 · 0⤊ 1⤋
yeah a black hole can suck anything in even light
2006-11-24 11:08:17 · answer #5 · answered by Bhaumik P 1 · 0⤊ 0⤋
If so, we're up the proverbial creek.
2006-11-24 06:41:09 · answer #6 · answered by Phoenix 1 · 0⤊ 0⤋