NASA astronaut and One-Year crew member Scott Kelly gathered hardware today for the start of the Fluid Shifts experiment. For the experiment on Tuesday, both Kelly and Russian cosmonaut Mikhail Kornienko will don the Russian Lower Body Negative Pressure (Chibis) suit and undergo ultrasound measurements. Fluid Shifts is a joint NASA-Russian experiment that investigates the causes for physical changes to astronaut’s eyes. Results from this study may help to develop preventative measures against lasting changes in vision and eye damage.
Meanwhile, NASA astronaut Terry Virts worked today to prepare the Multi-Purpose Small Payload Rack (MSPR) and Thermal Container to enable the ground to perform additional data collection in advance of the Cell Mechanosensing-3 experiment, launching on SpaceX-7. ESA astronaut Samantha Cristoforetti took samples for the Microbiome experiment which investigates the impact of space travel on both the human immune system and an individual’s microbiome, the collection of microbes that live in and on the human body at any given time.
Virts and Cristoforetti also gathered tools inside the station’s Quest airlock for upcoming work on one of the U.S. segment’s spacesuits.
Today, the Russian Federal Space Agency (Roscosmos) announced they will provide an updated vehicle launch and landing schedule by June 9.
A reboost of the International Space Station using the Russian Progress 58 cargo craft was completed successfully on Sunday at 7:30 p.m. CDT. A previous attempt on Friday evening was aborted one second into the burn automatically by the Progress vehicle. Russian flight controllers identified an issue with one of the eight thrusters on the spacecraft that was disabled for Sunday’s backup attempt.
The burn lasted 32 minutes and 3 seconds and began the process of setting up the correct phasing for the early June landing of three members of the Expedition 43 crew while providing the proper trajectory for Thursday’s return of the SpaceX Dragon cargo craft for its parachute-assisted landing in the Pacific. The reboost raised the station’s altitude by 1.2 statute miles at apogee and 3 miles at perigee and left the station in an orbit of 252.2 x 247.1 statute miles.
The six-member Expedition 43 crew started its work week with medical science. The crew practiced using a tonometer on an eye simulator with help from doctors on the ground. Similarly, One-Year crew member Scott Kelly explored how microgravity shifts fluids to the upper body impacting a crew member’s vision and eye structure.