How do astronauts grow plants in space?

In August 2015, the International Space Station astronaut ate the first batch of vegetables grown in space; earlier this month, they scam the first zinnia flowering

Space agriculture technology has not yet reached the level that "Martian people can achieve", but overcoming the challenge of planting plants with weightlessness is a special skill in itself.

Yesterday (January 20), NASA released a video explaining the "moment of historic vegetables" and explained this growth process in further detail. You can see it here:

Usually, the roots of plants grow downwards, where they easily absorb moisture and nutrients into the soil. In the universe, the roots grow in all directions and water and other essential vegetable foods float

Two years ago NASA astronaut Steve Swanson and Rick Mastrazio established the correct "vegetarian" at the International Space Station. Vegetarian is a container that provides more guidance to plants by using "plant pillows". These pillows are soil, fertilizer and nutrient bags, which contain moisture absorbing absorbents. The astronaut directs the seed to the moisture absorbent so that its roots grow toward the bottom of the bag and the stem grows outward. The LED lights illuminate the plants to supply the energy needed for growth, and the expandable plastic wall provides greater protection against the leaves.

So far, the astronaut has just planted red lettuce, but in future it plans to grow cabbage and tomatoes from the next SpaceX seed.

Trent Smith, a vege project manager at the Kennedy Space Center in NASA, Florida, said at a press conference: "We can feed the astronauts in space using Beggies Most of the crops cultivated in the specialized breeding department are various lettuce known as "Outredgeous" red romaine lettuce to date. But that is about to change. There are four new types of plants hidden in the dragon. "Dragon Ride" Lettuce, "Extra Dwarf" cabbage, "Red Russian" Kale, "Mustard" mustard will be added to the proved red Romaine lettuce. From this arrival, a total of 18 plant pillows will be added to the vegetarian room.

There are many reasons why NASA wants to learn to grow vegetables in outer space. In addition to providing fresh food to astronauts, plants can also provide life support by recycling air and water. "Growing plants have psychological benefits," Gioia Massa says. She is a plant scientist at the Kennedy Space Center in Cape Canaveral, Florida and is responsible for the NASA Veggie Project. As Mark Watney has learned about Mars, potatoes may be good creatures. They have quite a few proteins, some vitamins and other nutrients. Carbohydrates (sugar and starch) are abundant, too. You can not live in a potato by yourself. But they can help you avoid hunger

NASA is helping to feed astronauts and plans to plant plants in space to bring psychological benefits for long-term space flight. In 2017, the ISS was in a plant growth plant, the fifth bakery of Chinese cabbage was dealt to the crew for consumption, and the rest were saved for research. Japanese artists used balloons to shoot images of flowers and bonsai trees in space. In the short novel "Brick Moon" in 1869, the initial discussion on the plants in the universe was the Brickmoon Space Station tree.