Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: Mike on 13/01/2010 11:30:02

Title: Is there a black hole at the centre of the Universe?
Post by: Mike on 13/01/2010 11:30:02

Mike asked the Naked Scientists:
   
Is there a black hole at the centre of our Universe?

I imagine that our Universe was significantly altlered by the immense gravitational force which existed 14 billion years ago, before the big bang.

That gravitational force probably is responsible for the vacuum of space.

When the big bang occurred, did it leave a black hole similar to when a star explodes?

Thanks
Mike

What do you think?

Title: Is there a black hole at the centre of the Universe?
Post by: graham.d on 13/01/2010 12:30:17

There is no "centre" to the universe as far as is known. The big bang idea is an expansion of 4 dimensional space-time rather than an explosion in empty space. There is no special point in the unverse at which the big-bang took place. The best analogy is to think of the universe as the surface of a balloon that is being blown up. All the points on the initial tiny balloon are moving apart as the balloon expands.

It is thought that galaxies may have a massive black hole at their centres, including our own galaxy.

Title: Is there a black hole at the centre of the Universe?
Post by: Bengaman on 13/01/2010 22:48:16

That balloon analogy is cool, haven't heard it before.  First post!

Title: Is there a black hole at the centre of the Universe?
Post by: yor_on on 14/01/2010 17:28:38

There are really biig black holes in all galaxies it seems. But as we can't speak about a center to The universe?

Check it out :) (http://en.wikipedia.org/wiki/Supermassive_black_hole)