Cladosporium sphaerospermum, cultured at the Coimbra University Hospital Centre in Portugal. (Rui Tomé/Atlas of Mycology, used with permission) The Chernobyl exclusion zone may be off-limits to humans ...

Cheese fungus, head lice, human sperm, a bee eye, a microplastic bobble: scientific photographer Steve Gschmeissner has imaged them all under the probing lens of a scanning electron microscope (SEM).