Extraterrestrial life may look nothing like life on Earth − so astrobiologists are coming up with a framework to study how complex systems evolve
- Written by Chris Impey, University Distinguished Professor of Astronomy, University of Arizona
Evolution, the process of change, governs life on Earth − and potentially different forms of life in other places. Just_Super/E+ via Getty ImagesWe have only one example of biology forming in the universe – life on Earth. But what if life can form in other ways? How do you look for alien life when you don’t know what alien life...