The beginning of the universe

In this video CERN physicist Tom Whyntie explains ‘how did the universe begin and how is it expanding.’ He shows how cosmologists and particle physicists understand the Big Bang, by replicating the heat, energy, and activity of the first few seconds of our universe.   Watch the video…

Images © wikipedia

Cosmological Composition A pie chart indicating the proportional composition of different energy-density components of the Universe, according to the best ΛCDM model fits – roughly 95% is in the exotic forms of dark matter and dark energy.