Satellite testbed for evaluating cryogenic-liquid behavior in microgravity

A testbed for conducting an experiment in a microgravity environment on a substance in a cryogenic liquid state, the testbed comprising:

• a frame having a rectangular shape and comprising a source section, an experiment section and a bus section;
• the source section comprising a supply of the substance to be evaluated in the cryogenic liquid state;
• the experiment section comprising an experiment vessel in fluid communication with the source section to receive the substance from the source section and condense the substance into the cryogenic liquid state;
• a sensor adapted to sense a property of the substance in the cryogenic liquid state in the experiment vessel as part of the experiment;
• and
• the bus section comprising a controller configured to control delivery of the substance from the storage section to the experiment vessel, and to receive property data indicative of the property sensed by the sensor for subsequent evaluation on Earth.