In this fascinating clip by Motherboard, we follow astrobiologist Luke McKay efforts to assess how microorganisms can survive in such extreme conditions such as hot springs. This could in turn help researchers to look for life on other planets.

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“What I do is, I go to these extreme environments and I look at microbial relatives of ancient life. The early Earth did not have oxygen—we’re talking four billion years ago, when life developed on Earth,”

– McKay explains. Psychologist Axel Cleeremans joins Luke McKay to search for Earth analogs of probable extraterrestrial life at Nevada’s Great Boiling Spring.