My research has focused on visualization of Asgard archaea in marine sediments. This newly discovered archaeal superphylum encodes several types of proteins previously considered specific for eukaryotes, suggesting a high cellular complexity in prokaryotes. To this end, I am using in situ hybridization and advanced microscopy techniques to reveal ultrastructure of Asgard archaea cells in the environment. This would help us to understand how the subcellular complexity of eukaryotes evolved.