Expedition 63 Commander Chris Cassidy in front of the Microgravity Science Glovebox

iss063e068516 (Aug. 12, 2020) --- NASA astronaut and Expedition 63 Commander Chris Cassidy poses for a portrait in front of the Microgravity Science Glovebox as he was setting up the Packed Bed Reactor Experiment inside the research device. The new science hardware is exploring technology to support water recovery, planetary surface processing and oxygen production.