An International Space Station Experiment into Fundamental Regolith Processes in Microgravity

The primary objective of the Strata-1 investigation was to study the mixing and segregation dynamics of regolith on small bodies by exposing a suite of regolith simulants to the microgravity environment aboard the International Space Station (ISS) for a period of one year. In response to variable gravity levels and ambient vibrational environment the Strata-1 experiment aimed to investigate the behavior of regolith simulants specifically chosen to represent models of regolith covering a range of complexity and tailored to inform and improve computational studies.