Incredible Virus Discovery Offers Clues About the Origins of Complex Life SciTechDailyGenomes of six viruses that infect Asgard archaea from deep-sea sediments Nature.comVirus discovery offers clues about origins of complex life Phys.orgA closed Candidatus Odinarchaeum chromosome exposes Asgard archaeal viruses Nature.comAncient microbes may help us find extraterrestrial life forms Phys.org