One of many challenges of looking for life within the Universe is that there is no such thing as a single common biosignature that would reveal its presence. Even when we may inform the distinction between chemical compounds produced by dwelling organisms and people from non-living sources like volcanoes, we’re nonetheless making the idea that alien life would resemble life on Earth. A brand new paper proposes that missions seek for “energy-ordered useful resource stratification” which solely occurs when each self-replication and ecological competitors are current.