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Published on Oct 19, 2012
"From First Stars to First Life" Dr. Ralph Pudritz - McMaster University, Origins Institute, and Physics & Astronomy
How did life arise on Earth? Are we alone? These are among the oldest and most profound human questions. Life as we know it requires rocky planets that have liquid water and carbon rich molecules such as amino acids -- the building blocks of proteins. All of these basic ingredients for life are the products of the formation and evolution of stars. This talk will trace the remarkable story of how star formation, that first appeared 400 million years after the Big Bang, has prepared the cosmos to build planets that are equipped with the basic ingredients for life. We'll then address some of the basic steps that may be taken on planets everywhere towards building their first cells and genetic codes.