Documents The Big Bang: what happened, and when did it happen?

The Big Bang: what happened, and when did it happen? Where are we now? Observations of galaxies show the universe is expanding The theory of General Relativity contains solutions…

Documents Cosmology II - The nature of the universe What kind of universe do we live in (positive, Negative,.....

Cosmology II - The nature of the universe What kind of universe do we live in (positive, Negative, or zero curvature) Example1: space with positive curvature: the surface…