Microgravity simulation laboratory scientist preparing an experiment for a test in an Airbus Random Positioning Machine in the Microgravity Simulation Support Facility (MSSF). The facility provides ground simulation capability to the US research community in order to supplement the limited opportunities to access the International Space Station and other platforms for microgravity research. The MSSF is designed to support biological research on microorganisms, cells, tissues, small plants and small animals. Photographed at Kennedy Space Center, Florida, USA.