cosmology

what an interesting field of study - it was transformed in the late 1970s by inflation theory and supersymmetry. the former is the idea that for a tiny fraction of a second at the beginning of the Big Bang the universe expanded faster than the speed of light, creating random energy fluctuations that eventually became the large-scale structures of galaxies, galaxy clusters and superclusters. the latter is a theory that relates the properties of particles of force and matter, giving rise to predictions about invisible, or "dark," matter.