The Standard Cosmology

Over the course of the past several decades, cosmologists have used countless observations to come up with a sort of biography of the universe, a model of the history and structure of the universe often called the "Standard Cosmology".  A brief outline of the Standard Cosmology is given below - for more detail, send a question to our FAQ page!

The Big Bang Model

The Present Composition of the Universe

Pie chart - Image from WMAP

Jeff Filippini, UC Berkeley Cosmology Group (August 2005)