We know from geological history that life began comparatively fast, as soon earth’s atmosphere was able to hold it. However, despite knowing when life first emerged on Earth, scientists still do not figure out how life originated. Now, David Kipping, an assistant professor in Columbia’s Department of Astronomy uses Bayesian statistics to shed light on how extraterrestrial life might emerge beyond earth. Kipping practiced the chronology of the earliest proof for life and the evolution of humankind for this research. The study successfully shows how an analysis using a statistical technique called Bayesian inference could reveal how complex extraterrestrial life might develop in alien planets.