Adam Swanger (left) and James Fesmire assemble a cryocooler-based low temperature materials test in the Cryogenics Test Laboratory at NASA's Kennedy Space Center on Mar. 20, 2019.

Mark Velasco (left) and Jared Sass assemble a custom cold heat exchanger for freezing carbon dioxide from a simulated Martian environment in the Cryogenics Test Laboratory at NASA's Kennedy Space Center on Mar. 20, 2019.

James Fesmire pours liquid nitrogen from a dewar into an insulated glass flask in the Cryogenics Test Laboratory at NASA's Kennedy Space Center on Mar. 20, 2019. See-through flasks are a useful tool in cryogenics to examine various physical phenomena.

James Fesmire transfers a charged Cryogenic Flux Capacitor device to a bath of water in the Cryogenics Test Laboratory at NASA's Kennedy Space Center on Mar. 20, 2019. This demonstration is a visual aid that conveys that a large quantity of fluid is stored in the device at low temperature.