<ul><li>The Expedition 72 crew continued its life science research and spacewalk preparations on Tuesday as a U.S. resupply spacecraft splashed down in the Gulf of Mexico.</li><li>NASA Flight Engineers Don Pettit and Nick Hague worked on two different space biology experiments exploring microgravity effects on humans.</li><li>Commander Suni Williams and Flight Engineer Butch Wilmore installed new exercise gear, the European Enhanced Exploration Exercise Device, in the Columbus laboratory module.</li><li>Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner prepared for a spacewalk to remove external science experiments and relocate hardware.</li></ul>

Life Science, Spacewalk Preps on Station as Dragon Splashes Down

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