iss060e008906

iss060e008906 (7/17/2019) --- Photo documentation of the Hermes Cassette-1 investigation aboard the International Space Station (ISS). Hermes Cassette-1 is the the first set of experiments in the Hermes Facility, it explores the dynamics and properties of material on the surface of small asteroids, including regolith. Regolith creates a loosely aggregated surface on airless bodies and researchers expect it is dominated by interactions between individual grains of the material. Results improve understanding of asteroid and small body dynamics and validate and improve small body models, essential for future crewed and robotic missions to these small bodies.