Plant Habitat-04 (PH-04) Pepper Seed Planting

A researcher from NASA’s Kennedy Space Center in Florida prepares pepper seeds for planting inside science carriers on April 8, 2021, inside the Space Life Sciences Lab for the Plant Habitat-04 (PH-04) experiment. The seeds will fly to the International Space Station on SpaceX’s 22nd Commercial Resupply Services (CRS-22) mission. When the experiment starts, astronauts will grow the pepper seeds in the Advanced Plant Habitat (APH) growth chamber, which will monitor the experiment with more than 180 sensors. The astronauts will observe plant growth for about four months and conduct two harvests to study whether microgravity affects growth, flavor, or texture. Since peppers take longer to germinate, grow, and develop than previous crops grown in space, the PH-04 experiment also will test the durability and reliability of the various systems within the APH.