Question about black holes

[skippystars]

Hi all!<br />I've been reading all the posts here for about a month now and decided to join up. Nice to be join up!<br />At the moment I have a question about black holes. My question is, can and/or do black holes move throughout space? (Ie: Should one possibly worry here on Earth about the possibility of a black hole zooming on it's way here; only to suddenly suck us out of existence during the middle of our lunch breaks in oh say..three years from now?)<br /><br />Thanks all.<br /><br />SK

 

[MeteorWayne]

Welcome to SDC!<br />The answer to your question is yes, no, an maybe. How's that for clearing things up? <img src="/images/icons/smile.gif" /><br />Let me explain.<br />Everything moves through space. SO that's the yes.<br />The more relevant question is do any move towards us?<br />Answer, none we know of so far.<br />There are supermassive black holes at the centers of most galaxies, including ours. But we're in orbit around the center of our galaxy a good distance out, so that's not a threat.<br />In a dozen billion years or so our galaxy may collide with the Andomeda galaxy, which has it's own black hole, but the odds of it coming close to us are billions to one.<br /><br />Smaller black holes are scattered within galaxies, but certainly none are close to us or we'd see some evidence for them.<br /><br />Tiny black holes <font color="black"> may </font>exist, but would be much harder to discover. If they came close to the solar sytem, the gravitational effects would likely betray their presence well ahead, years, decades, or centuries in advance. <br /><br />Teeny Weeny black holes are available in theory, but there's no evidence for them so far, so they remain theoretical. It is unclear what the effect would be not knowing the size, and the fact that they are also theorized to evaporate.<br /><br />So mate, no worrys for the next 3 minutes at least!<br />And probably the next several centuries.<br /><br />Now asteroids....that's something you can worry about <img src="/images/icons/smile.gif" /> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>

 

[skippystars]

Thanks!

 

[alokmohan]

Fully endose.The probabiliy of black hole gobbling is much less than asteroid fall,sun bursting etc.Have a good sleep.But if you move in a spaceship dont go too near to the evnt horizon.Then the black hole shall gobble you up.Black holes are voracious eaters.They eat stars also.