Astronaut Nick Hague transfers research samples into a science freezer

iss059e072412 (May 24, 2019) --- NASA astronaut Nick Hague transfers research samples into a specialized science freezer located aboard the International Space Station. The ultra-cold freezers are nicknamed GLACIER, short for The General Laboratory Active Cryogenic International Space Station (ISS) Experiment Refrigerator, and store samples at temperatures as low as -160 °C (-301 °F).