This article was originally published at The Conversation. The publication contributed the article to Space.com's Expert Voices: Op-Ed & Insights. María Rosa Pino Otín is a Professor and researcher of Microbiology, Universidad San Jorge
We often forget how wonderful it is that life exists, and what a special and unique phenomenon it is. As far as we know, ours is the only planet capable of supporting life, and it seems to have arisen in the form of something like today’s single-celled prokaryotic organisms.
