Answer:
NASA is growing plants in space to test plant growth/yields in zero gravity, help to feed the astronauts, and to measure the psychological benefits to support long-term space travel.
Step-by-step explanation:
The Vegetable Production System (also known as Veggie) is a garden that resides on the international space station. Its purpose is to allow NASA to study plant growth, yields, and adaptation to microgravity and zero gravity while providing fresh food and enhancing the psychological well-being of the station occupants.