Interesting Facts





INTERESTING FACT

Black Hole Facts

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.





Posted by: Interesting Facts


Rate: Rate with 1 Rate with 2 Rate with 3 Rate with 4Rate with 5 (2.96) Science Facts Category | Review this Fact





Comment this fact. We value your opinion! Your e–mail address won’t be published. Comments will be deleted if they are offensive and make no sense. You can register your own profile avatar photo at Gravatar.com.

Newest first (older comments are on other other pages)!
RX5801
"Hawking Radiation" can cause a black to shrink and eventually not have enough mass to distort space-time.

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?
RX5801 at at 02:15AM, Jan 14th 2012.
Anon.
termenator wrote:
do black holes have the strongest gravity ever...i wonder


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?
Anon. at at 03:38PM, Jan 13th 2012.
termenator
do black holes have the strongest gravity ever...i wonder
termenator at at 07:44PM, Jan 9th 2012.
MAX
superb!
MAX at at 05:24AM, Jan 4th 2012.
jacob micheal
Mr Logic wrote:
It's all Theory, the only time some thing like a black hole can be a fact is when some one can vist one and do tests.


heh.. that's cute. You cannot visit a black hole, its gravity is too great.
jacob micheal at at 05:24PM, Dec 20th 2011.
MAX
It is recently discovered by CERN scientists that some neutrinos were found to travel faster than light. Then is it possible to tavel faster than light and escape the black holes gravity
MAX at at 09:36AM, Oct 22nd 2011.
Georgie
I see a black hole everytime I pull down my pants and bend over
Georgie at at 08:35PM, Oct 17th 2011.
John Sauve
The 'Event Horizon' is a term that is confusing.
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.
John Sauve at at 10:17AM, Sep 12th 2011.
Mr Logic
It's all Theory, the only time some thing like a black hole can be a fact is when some one can vist one and do tests.
Mr Logic at at 01:21AM, Sep 12th 2011.
freya
black holes exist and are very interesting
freya at at 12:45AM, Sep 6th 2011.
RW
There are a few things that we should look at in this discussion and accept as fact. The first is, yes, light does have mass. Can we actually measure it? Not yet. But the same could have been said about electrons years ago.

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.
RW at at 03:59AM, Jul 17th 2011.
John Sauve
Light does respond to gravity, thus does have mass.
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.
John Sauve at at 10:45AM, Jul 15th 2011.
ham
i meant its not proven that light have mass. but possibly something yet to be discovered.
ham at at 01:53AM, Jun 24th 2011.
ham
Sabrina wrote:
G mac wrote: #
i dont understand why its so hard to understand everything has mass even light,the more mass the more gravity, gravity attracts anything with mass, once a sun gets so large its own gravity causes it to implode its gravity becomes so great it even sucks in light everything it sucks in will add to its mass and gravitional pull its not a door way in space or a time portal its simply an object with such a large gravitional pull it sucks in everything even light and crushes it adding 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?


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.
ham at at 01:50AM, Jun 24th 2011.
Nick
the sun is a white hole in a sence
Nick at at 12:19PM, Jun 19th 2011.
Sabrina
G mac wrote: #
i dont understand why its so hard to understand everything has mass even light,the more mass the more gravity, gravity attracts anything with mass, once a sun gets so large its own gravity causes it to implode its gravity becomes so great it even sucks in light everything it sucks in will add to its mass and gravitional pull its not a door way in space or a time portal its simply an object with such a large gravitional pull it sucks in everything even light and crushes it adding 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?
Sabrina at at 11:11AM, Apr 10th 2011.
Tanya
Aj wrote: #
Can anyone give me more information on black holes? I need to type up an eight page paper on black holes -_-

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
Tanya at at 05:11PM, Apr 3rd 2011.
Tanya
karen wrote: #
i've to do 500 words on black holes uhhhh can't be bothered 400 words i can do it lol

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..
Tanya at at 05:10PM, Apr 3rd 2011.
Tanya
rachid trice wrote: #
cam somone tell me some infoabout black holes come on

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...
Tanya at at 05:10PM, Apr 3rd 2011.
Tanya
rachid trice wrote: #
cam somone tell me some infoabout black holes come on

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.
Tanya at at 05:09PM, Apr 3rd 2011.
rachid trice
cam somone tell me some infoabout black holes come on
rachid trice at at 01:11PM, Mar 28th 2011.
karen
i've to do 500 words on black holes uhhhh can't be bothered 400 words i can do it lol
karen at at 03:50PM, Mar 26th 2011.
Aj
Can anyone give me more information on black holes? I need to type up an eight page paper on black holes -_-
Aj at at 03:40PM, Mar 24th 2011.
bani
me and jackie r too!!!! :)
bani at at 08:58AM, Mar 22nd 2011.
Summer
ann wrote: #
if they cant be in light and know one can see them , then how do scientist know they exist it dont make since.i dont thank anybody really knows if the black holes and stuff exsit




They know they exist because the objects around it move faster than objects around a star.
Summer at at 10:08PM, Mar 21st 2011.

Post your comment

You can use following HTML tags: <a><br><strong><b><em><i><blockquote><pre><code><img><ul><ol><li><del>




Comments script