Recollections of the Big Bang
Category: SCIENCE
About 13.8 billion years ago, the hydrogen in my body emerged from the Big Bang. It spent eons just hanging around in the rapidly expanding and cooling universe. As stars became supernovae, the other elements in my body were forged and ejected into space.
By Dr. Sten Odenwald, ContributorAstronomer, NASA Heliophysics Education Consortium, 2014-07-01