This is the only experiment that has detected any dark matter at present. Beyond the Big Bang Theory There are a number of developments that go beyond the Big Bang Model. These are theoretical and have yet to be tested observationally. The Inflationary Universe Model. The origin of the primordial density perturbations.
Inflation provides a way to generate the right kind of perturbations.
Origin of the Universe theories. There are a number of theories which seek to explain the origin of the Universe. They all use the inflation idea, and it is not clear that any of them can be tested observationally. The Eternally Inflating Universe. The Universe continues forever in an inflationary expansion, but every once in a while, a piece of the Universe stops expanding.