NASA Administrator Jim Bridenstine, far left, tours a plant research laboratory inside the Space Station Processing Facility (SSPF) at NASA's Kennedy Space Center in Florida, on Aug. 7, 2018. Bridenstine selects a microgreen to sample from Matt Romeyn, project scientist. Behind Bridenstine, from left, are Bryan Onate, Advanced Plant Habitat project manager, and Kennedy Space Center Director Bob Cabana. Bridenstine received updates on research and technology accomplishments during his visit to the SSPF.