Clayton Grosse, a mechanical engineer with Techshot, uses a punch to take a sample of the leaf of a radish plant growing in the base of the Advanced Plant Habitat (APH) ground unit, inside a laboratory in the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on June 13, 2019. The radishes are being harvested as part of a science verification test. The APH is currently the largest plant chamber built for the agency in use on the International Space Station. It is an autonomous plant growth facility that is being used to conduct bioscience research on the space station with the goal of enabling astronauts to be sustainable on long duration missions to the Moon, Mars and beyond.