A researcher prepares to harvest radishes grown in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment, which also involves growing two radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A view of radishes growing in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment. The experiment also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A view of radishes growing in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment. The experiment also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A view of radishes growing in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment. The experiment also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A view of radishes growing in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment, which also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A research scientist collects measurements of radishes harvested from the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment, which also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A research scientist harvests radishes grown in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment. The experiment also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A researcher takes measurements of a radish crop harvested from the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment, which also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

In view is the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. Part of the Plant Habitat-02 (PH-02) experiment, a ground control crop of radishes was grown at Kennedy and harvested on Dec. 14. The experiment also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

A research scientist harvests radishes grown in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment. The experiment also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

Dave Reed, Florida operations director for Techshot, Inc., observes radishes growing in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment. The experiment also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

Dave Reed, Florida operations director for Techshot, Inc., observes radishes growing in the Advanced Plant Habitat (APH) ground unit inside the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on Dec. 14, 2020. The radishes are a ground control crop for the Plant Habitat-02 (PH-02) experiment, which also involves growing two similar radish crops inside the International Space Station’s APH. NASA astronaut Kate Rubins harvested the first crop on Nov. 30, and the second harvest aboard the orbiting laboratory is planned for Dec. 30. Once samples return to Earth, researchers will compare those grown in space to the radishes grown here on Earth to better understand how microgravity affects plant growth.

Inside the Veggie flight laboratory in the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida, Matthew Romeyn, a NASA Pathways intern from the University of Edinburgh in Scotland, harvests a portion of the 'Outredgeous' red romaine lettuce from the Veg-03 ground control unit. The purpose of the ground Veggie system is to provide a control group to compare against the lettuce grown in orbit on the International Space Station. Veg-03 will continue NASA’s deep space plant growth research to benefit the Earth and the agency’s journey to Mars.

Inside the Veggie flight laboratory in the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida, a research scientist harvests a portion of the 'Outredgeous' red romaine lettuce from the Veg-03 ground control unit. The purpose of the ground Veggie system is to provide a control group to compare against the lettuce grown in orbit on the International Space Station. Veg-03 will continue NASA’s deep space plant growth research to benefit the Earth and the agency’s journey to Mars.

Inside a laboratory in the Space Systems Processing Facility at NASA’s Kennedy Space Center in Florida, a plant biologist harvests Outredgeous romaine lettuce growing in the Advanced Plant Habitat ground unit as the ground control portion of the Plant Habitat-07 (PH-07) experiment on Thursday, April 24, 2025. PH-07 was sent to the International Space Station on NASA’s SpaceX 31st commercial resupply services mission to study how optimal and suboptimal moisture conditions impact plant growth, nutrient content, and the plant microbiome.

Inside a laboratory in the Space Systems Processing Facility at NASA’s Kennedy Space Center in Florida, a plant biologist harvests Outredgeous romaine lettuce growing in the Advanced Plant Habitat ground unit as the ground control portion of the Plant Habitat-07 (PH-07) experiment on Thursday, April 24, 2025. PH-07 was sent to the International Space Station on NASA’s SpaceX 31st commercial resupply services mission to study how optimal and suboptimal moisture conditions impact plant growth, nutrient content, and the plant microbiome.

Plant biologists inside a laboratory in the Space Systems Processing Facility at NASA’s Kennedy Space Center in Florida, prepare to harvest Outredgeous romaine lettuce growing in the Advanced Plant Habitat ground unit as the ground control portion of the Plant Habitat-07 (PH-07) experiment on Thursday, April 24, 2025. PH-07 was sent to the International Space Station on NASA’s SpaceX 31st commercial resupply services mission to study how optimal and suboptimal moisture conditions impact plant growth, nutrient content, and the plant microbiome.

Plant biologists inside a laboratory in the Space Systems Processing Facility at NASA’s Kennedy Space Center in Florida, prepare to harvest Outredgeous romaine lettuce growing in the Advanced Plant Habitat ground unit as the ground control portion of the Plant Habitat-07 (PH-07) experiment on Thursday, April 24, 2025. PH-07 was sent to the International Space Station on NASA’s SpaceX 31st commercial resupply services mission to study how optimal and suboptimal moisture conditions impact plant growth, nutrient content, and the plant microbiome.

Inside a laboratory in the Space Systems Processing Facility at NASA’s Kennedy Space Center in Florida, a plant biologist harvests Outredgeous romaine lettuce growing in the Advanced Plant Habitat ground unit as the ground control portion of the Plant Habitat-07 (PH-07) experiment on Thursday, April 24, 2025. PH-07 was sent to the International Space Station on NASA’s SpaceX 31st commercial resupply services mission to study how optimal and suboptimal moisture conditions impact plant growth, nutrient content, and the plant microbiome.

jsc2025e047409 (2/27/2024) --- Lettuce grown as a ground experiment with the control (left) and flood (right) moisture treatments prior to harvest on day 28. The Spaceflight Microbiome of a Food Crop Grown Using Different Substrate Moisture Levels (Plant Habitat-07) investigates how plants, and their communities of microorganisms respond to different levels of water. Results could support development of systems for growing food crops on future missions. Image courtesy of the PH-07 Team.

CAPE CANAVERAL, Fla. -- Researchers document the ground control plant pillows in the Veggie plant growth system inside a control chamber at the Space Station Processing Facility at NASA's Kennedy Space Center in Florida prior to thinning them to one plant each. The growth chamber is being used as a control unit and procedures are being followed identical to those being performed on Veggie and the Veg-01 experiment on the International Space Station. Veggie and Veg-01 were delivered to the space station aboard the SpaceX-3 mission. Veggie is the first fresh food production system delivered to the station. Six plant pillows, each containing outredgeous red romaine lettuce seeds and a root mat were inserted into Veggie. The plant chamber's red, blue and green LED lights were activated. The plant growth was monitored for 28 days. At the end of the cycle, the plants will be carefully harvested, frozen and stored for return to Earth. Photo credit: NASA/Charles Spern

CAPE CANAVERAL, Fla. -- Researchers document the growth of the ground control plants in the Veggie plant growth system inside a control chamber at the Space Station Processing Facility at NASA's Kennedy Space Center in Florida prior to thinning them to one plant each. The growth chamber is being used as a control unit and procedures are being followed identical to those being performed on Veggie and the Veg-01 experiment on the International Space Station. Veggie and Veg-01 were delivered to the space station aboard the SpaceX-3 mission. Veggie is the first fresh food production system delivered to the station. Six plant pillows, each containing outredgeous red romaine lettuce seeds and a root mat were inserted into Veggie. The plant chamber's red, blue and green LED lights were activated. The plant growth was monitored for 28 days. At the end of the cycle, the plants will be carefully harvested, frozen and stored for return to Earth. Photo credit: NASA/Charles Spern

CAPE CANAVERAL, Fla. -- Researchers document the growth of the ground control plants in the Veggie plant growth system inside a control chamber at the Space Station Processing Facility at NASA's Kennedy Space Center in Florida prior to thinning them to one plant each. The growth chamber is being used as a control unit and procedures are being followed identical to those being performed on Veggie and the Veg-01 experiment on the International Space Station. The chamber mimics the temperature, relative humidity and carbon dioxide concentration of those in the Veggie unit on the space station. Veggie and Veg-01 were delivered to the space station aboard the SpaceX-3 mission. Veggie is the first fresh food production system delivered to the station. Six plant pillows, each containing outredgeous red romaine lettuce seeds and a root mat were inserted into Veggie. The plant chamber's red, blue and green LED lights were activated. The plant growth was monitored for 28 days. At the end of the cycle, the plants will be carefully harvested, frozen and stored for return to Earth. Photo credit: NASA/Charles Spern

CAPE CANAVERAL, Fla. – The plant pillows containing the outredgeous red lettuce leaves have been removed from the Veggie plant growth system inside a control chamber at the Space Station Processing Facility at NASA's Kennedy Space Center in Florida. From left, are Trent Smith, NASA project manager in the ISS Ground Processing and Research Project Office, Chuck Spern, lead project engineer with QinetiQ North America on the Engineering Services Contract, George Guerra, quality control engineer with QinetiQ North America, Jim Smodell, a technician with SGT, Gioia Massa, NASA payload scientist for Veggie, and Nicole Dufour, NASA Engineering and Technology. The growth chamber was used as a control unit for Veggie and procedures were followed identical to those being performed on Veggie and the Veg-01 experiment on the International Space Station. The chamber mimicked the temperature, relative humidity and carbon dioxide concentration of those in the Veggie unit on the space station. Veggie and Veg-01 were delivered to the space station aboard the SpaceX-3 mission. Veggie is the first fresh food production system delivered to the station. Six plant pillows, each containing outredgeous red romaine lettuce seeds and a root mat were inserted into Veggie. The plant chamber's red, blue and green LED lights were activated. The plant growth was monitored for 33 days. On June 10, at the end of the cycle, the plants were carefully harvested, frozen and stored for return to Earth by Expedition 39 flight engineer and NASA astronaut Steve Swanson. Photo credit: NASA/Frankie Martin

CAPE CANAVERAL, Fla. – At far right, Jim Smodell, a technician with SGT, shows a plant pillow from the Veggie plant growth system to Gioia Massa, NASA payload scientist for Veggie. Partially hidden behind Smodell is Chuck Spern, lead project engineer with QinetiQ North America on the Engineering Services Contract. At left is Trent Smith, NASA project manager in the ISS Ground Processing and Research Project Office, and Nicole Dufour, NASA Engineering and Technology Directorate. They are in the Payload Development Laboratory at the Space Station Processing Facility, or SSPF, at NASA's Kennedy Space Center in Florida. The plant pillows were removed from the Veggie plant growth system inside a control chamber at the SSPF. The growth chamber was used as a control unit for Veggie and procedures were followed identical to those being performed on Veggie and the Veg-01 experiment on the International Space Station. The chamber mimicked the temperature, relative humidity and carbon dioxide concentration of those in the Veggie unit on the space station. Veggie and Veg-01 were delivered to the space station aboard the SpaceX-3 mission. Veggie is the first fresh food production system delivered to the station. Six plant pillows, each containing outredgeous red romaine lettuce seeds and a root mat were inserted into Veggie. The plant chamber's red, blue and green LED lights were activated. The plant growth was monitored for 33 days. On June 10, at the end of the cycle, the plants were carefully harvested, frozen and stored for return to Earth by Expedition 39 flight engineer and NASA astronaut Steve Swanson. Photo credit: NASA/Frankie Martin