Midweek Immunology Research and Spacewalk Preps for Lab Residents

The well-lit coasts of Spain, France and Italy
This oblique nighttime view of Western Europe and the well-lit coasts (from left) of Spain, France and Italy was taken from the International Space Station as it orbited 256 miles above the Mediterranean Sea.

Immunology research has been keeping the Expedition 59 astronauts busy since the SpaceX Dragon space freighter delivered new science gear in early May. Two cosmonauts are also one week away from starting the fourth spacewalk this year at the International Space Station.

NASA astronaut Anne McClain was back inside Japan’s Kibo laboratory module today observing how the immune systems of mice, which are similar to humans, respond to the lack of gravity. She teamed up with Flight Engineers Christina Koch and David Saint-Jacques for the on-orbit research to help doctors improve astronauts’ immunity in space. The potential for advanced vaccines and therapies may also benefit Earthlings as well as future astronauts exploring the Moon and beyond.

A variety of other space biology and human research took place today as Flight Engineer Nick Hague collected and stowed his blood and urine samples for later scientific analysis. He also worked on the Biolab hardware before stowing the Biomolecule Sequencer that sequences DNA aboard the space station. The advanced science gear is part of the Genes In Space-6 experiment researching how space radiation impacts DNA and the cell repair mechanism.

Commander Oleg Kononenko and Flight Engineer Alexey Ovchinin were back on spacesuit duty today. The Roscosmos cosmonauts transferred their Orlan spacesuits to the Pirs airlock and installed portable repressurization tanks in the Russian lab module. Next week they will review procedures and timelines for their approximately six-hour spacewalk for external maintenance scheduled for Wednesday, May 29.

A docked Russian Progress cargo craft will fire its engines for 20 minutes raising the station’s orbit on Thursday. The reboost will place the orbiting complex in the correct trajectory for the undocking and landing of three Expedition 59 crewmembers June 24.

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