Unevenness of the CMB


This unevenness gives us a snapshot of the clumpiness of the plasma at that time.

This clumpiness is crucially important - it was the seeds that went on to form the beautiful and complex structure that we see around us in the Universe today.

The amount of clumps of different sizes can tell us an amazing amount about the parameters of our Universe:
The set of numbers which Cosmologists use to distinguish our Universe amongst the set of all possible universes...