Commander Chris Cassidy started off Thursday working on the Electrostatic Levitation Furnace, a device that heats materials to very high temperatures and measures their thermophysical properties. The unique furnace may provide scientists insights into synthesizing and producing new materials. The veteran astronaut then spent the afternoon servicing U.S. spacesuit components ahead of a series of spacewalks planned for June.
New NASA Flight Engineers Doug Hurley and Bob Behnken spent Thursday servicing space botany hardware and exploring bubbles in fluids. Both astronauts temporarily disassembled a plant habitat to access and replace environment control system gear. The duo also studied how bubbles affect microfluids to help produce oxygen on a spacecraft and deliver drugs though skin patches.
Ivanishin was inside the U.S. Destiny laboratory swapping fuel bottles inside the Combustion Integrated Rack to enable safe fuel and flame science. He also worked on cargo transfers inside the Progress 74 resupply ship. Vagner inspected surfaces inside the Russian portion of the space station. In the afternoon, the first-time space flyer set up a video camera to record crew activities for audiences back on Earth.