Panspermia: Did Life Start on Our Planet?

An otherworldly hypothesis on the origin of life.

Artist rendering of an asteroid approaching Earth. Source: icetray, via Storyblocks.

How did life begin? That is one of the biggest scientific questions today. Although we don’t have all the details figured out, most scientists believe life began through abiogenesis. Abiogenesis is the process in which nonliving matter gives rise to life. Today, scientists believe abiogenesis occurred quickly…