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Transforming Space Travel with Nutrient Recycling – Grace Crain-Wright

Feb 6, 2025
Grace Crain-Wright, a plant ecologist and STEM educator, discusses her groundbreaking work on nutrient recycling for sustainable space travel as part of the European Space Agency’s MELiSSA project. She shares insights into the challenges of using human waste to nourish plants in space and highlights the potential benefits for Earth gardening. Grace also reflects on her journey in research and emphasizes the importance of STEM education through the GLOBE program, fostering curiosity and connection among future scientists.
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ANECDOTE

Growing Plants from Waste

  • Grace worked on a European Space Agency project, MELiSSA, focusing on growing plants from human waste in hydroponic systems for space travel.
  • She tested urine-based fertilizers in controlled hydroponics and found careful nutrient balance is key for plant growth.
ANECDOTE

Life-changing GLOBE Student Program

  • Grace led a week-long in-person student research and cultural exchange program through the GLOBE program.
  • Students from around the world collected data in Colorado and shared it with global scientists, resulting in life-changing experiences.
INSIGHT

Extreme Earth Ecosystems as Space Analogs

  • Extreme environments on Earth like deserts and mountaintops serve as analogs for planetary bodies, aiding astrobiology research.
  • Grace’s passion for these systems stems from early exposure to space science and a love of nature exploration.
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