Life on Mars? It probably looks like something you’d find in your stomach

By María Rosa Pino Otín, Profesora e investigadora en Microbiología, 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.

However, scientists have not given up hope of finding what they call LUCA (Last Universal Common Ancestor, the ancestral cell from which all living things we know are descended)…

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