astronomy please help :)?

None of these are definitely known. The Fate ~ there are 3 theories. There is an ever-expanding model, a 'Big Crunch' model, and a Cycle model; the last is one where it is a cycle of expanding and collapsing. The Shape ~ no one knows the shape. It could be any shape; gravity, extra dimensions, different pressures & temperatures...... all of these factors could warp the shape of the universe. The Density ~ We do not know this either. We do not see all of the matter in the universe; there is dark matter, possible anti-matter, maybe extra-dimensional matter, and many other unknown materials that we do not know of that contribute to the density.

I do not think that you will get any answers that will more specifically give you the answers to the Unknown. :) Good luck finding them!
 
Back
Top