ESA astronaut Thomas Pesquet at work on the International Space Station during maintenance of the Biolab. Biolab is an experiment facility located in the European Columbus laboratory that supports biological experiments on micro-organisms, cells, tissue cultures, small plants and small invertebrates. Performing life science experiments in space identifies the role that weightlessness plays at all levels of an organism, from the effects on a single cell up to a complex organism including humans.
More about Biolab: http://www.esa.int/Our_Activities/Human_Spaceflight/Columbus/Biolab
Connect with Thomas: http://thomaspesquet.esa.int