iss056e098995 (July 26, 2018) --- Astronaut Alexander Gerst of ESA (European Space Agency) works inside the Japanese Kibo laboratory module taking pictures of samples for the Binary Colloidal Alloy Test-Cohesive Sedimentation investigation (BCAT-CS). The fluid physics research explores the sedimentary properties of quartz and clay particles. Mixed quartz and clay samples are suspended in a liquid for photographic and video downlink to scientists on Earth helping guide future geological studies of unexplored planets and improving petroleum exploration here on Earth.

Date July 26, 2018