Gravity in the universe?

Question

this may seem like a srupid question, but ive wondered...if the universe has a bottom, and if hypothetically there was gravity at the bottom...would the stars and planets and galaxies and such fall to the bottom? and if so, would we feel it here in earth? i know it seems dumb...but its a what if question.

Answer 1

The universe doesn't have a bottom and this is hard to answer in any meaningful way, given the premise.  We are affected by the aggregate gravity of the entire universe, but it is impossible to determine any direction that it pulls us, more than any other.  You might say that the gravitational center of the universe would be at its center of mass, but there is no center of the universe.

Answer 2

well, it would just keep falling. I mean, it would take FOREVER for planets and such to get to the bottom, but yes, they would be pulled down.

Answer 3

I'm no Steven Hawking, but I will give this a whirl.  Theoretically, the universe is infinite with no top, bottom or sides for that matter.  The only gravity is produced by things with mass, such as planets and stars.  Scientists now believe that there is other matter that we cannot see called dark matter, which is sort of the fabric on which all objects rest.  They believe it exists because it can affect light (I think that's the theory if I remember correctly).  

Answer 4

Your first statement "if the universe has a bottom" is wrong.

The universe doesn't have a "bottom" or a "top" - there is no up or down unless you are in a gravitational field of some kind.

Answer 5

IF the universe has a bottom or a top, the stars and planets still will not fall, imagine that the universe is a balloon that keeps growing larger and larger with total vacuum inside it and the stars and planets are dusts inside the balloon, the dusts can crash into each other because they have gravity, but they will not fall into the bottom of the balloon because there is nothing (as far as human knows) outside the balloon and therefore no gravity to pull them down

Answer 6

The universe has no top bottom, center, edges etc.  Gravity is a force exerted by massive objects IN the universe.  So, the rest of your question makes no sense.