Black holes are supposed to suck things in...but, would that not mean that the whole universe is constantly being sucked in in various places?
2007-08-18 23:35:53 · 9 answers · asked by ai_ai_kuroneko 1 in Science & Mathematics ➔ Astronomy & Space
no. They are not THAT powerful.
Only stars that are close to the black hole get sucked in and its not extremely common.
check my answer to your other question about blackholes.
2007-08-19 00:21:20 · answer #1 · answered by Mercury 2010 7 · 0⤊ 0⤋
They can suck things in, but so can the Earth and any other substantial body in space when something approaches them. From a distance, a black hole's gravity is no different than any other object. They cannot suck in everything from afar, only those objects that get very near them would fall into them. If our Sun became a black hole right now, the Earth and other planets will not fall into it, they will remain in orbit where they are now.
2007-08-19 04:09:12 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Everything in the universe is affected by gravitational fields but they don't necessarily get sucked into anything, planets are following the curved space around our sun in stable orbits. A black hole has such a strong gravity well that even light can't escape the curved space around it. Other bodies that far enough away may orbit the black hole for eons but never get pulled into them.
2007-08-21 14:23:02 · answer #3 · answered by johnandeileen2000 7 · 0⤊ 0⤋
If a black hole could exist it would act like any other celestial body.
It would be no more dangerous to planets etc than our sun is to us.
Because the surface gravity would be so intense that the escape velocity would be greater than the speed of light it would be invisible.
There are some very good reasons why black holes can't exist.
2007-08-19 00:39:38 · answer #4 · answered by Billy Butthead 7 · 0⤊ 0⤋
Black holes only have the effective range of the material they sucked in. For instance if our sun were to turn into a black hole, the gravitational pull would be exactly the same. It wouldn't get more powerful.
2007-08-18 23:48:43 · answer #5 · answered by gregory_dittman 7 · 2⤊ 0⤋
Black Holes do not exist. No Probe or spacecraft has ever been close to a minimum of one and no person on planet Earth has ever seen one up close. that's the main ridiculous concept universal and dumb sheeple actually believe what they have been advised via scientists and astronomers that Black Holes exists whilst in fact they on no account seen each physique they're doing is verifying their very own version of effects and documents and shoving it in our faces and making choose for us to believe in this fantasy observed as black holes.
2016-10-16 02:58:19 · answer #6 · answered by ? 4 · 0⤊ 0⤋
I think there are probably a lot of things being sucked in, but not enough to dramatically change the universe. To get sucked in, an object has to pass the event horizon.
2007-08-19 01:57:02 · answer #7 · answered by Lexy R 2 · 0⤊ 0⤋
black holes have a range.black holes have a vacuum around them and they only suck things that get too close. their presence doesn't mean that universe is being sucked constantly. so be comfy baby, earth is safe.
2007-08-19 00:01:07 · answer #8 · answered by mermaid 2 · 0⤊ 0⤋
General relativity predicted the formation of black holes from neutron stars. (Neutron stars are remnants of exploded stars, see Iron below). As more matter falls into a neutron star its mass increases; and as its mass increases its gravity increases. A point will be reached where gravity would have grown so much that not even light could escape, thus a black hole forms.
Most neutron stars discovered today are in the form of radio pulsars. They are called radio pulsars because they emit radio waves; we can simply connect a radio telescope to a loud speaker and hear a pulsar. Pulsars sound like someone persistently knocking.
So in short, we can hear a pulsar knock; and if matter continues to fall into this pulsar a black hole will eventually form. Moslems say that this is what Allah says. The Quran describes a star by "The one who knocks" and says that it is "The one who makes a hole".
[Quran 86.1-3] And the heaven and the "Knocker" (Tarek in Arabic) 2 How could you know about the "Knocker"? 3 The piercing star (Thakeb in Arabic).
The Arabic word "Thukb" means hole; "Thakeb" means the one who makes the hole. The Quran is describing a knocking star that makes a hole.
At the center of this black hole (collapsed star) lies a location where gravity has gone so mad that space and time become indistinguishable.
http://www.speed-light.info/relativity_quran.htm#redshift
2007-08-18 23:58:22 · answer #9 · answered by Anonymous · 0⤊ 2⤋