Ecosystem volunteers return to real world

By ZHAO LEI | China Daily | Updated: 2018-05-16 07:19
Liu Hong, chief designer of Yuegong-1, or Lunar Palace 1, speaks at a ceremony at Beihang University in Beijing, capital of China, May 15, 2018. Chinese volunteers have completed a one-year test living in a simulated space lab in Beijing, setting a new record for the longest stay in a self-contained cabin. The total length of the test, which started on May 10th last year, reached 370 days, with the third stage accounting for 110 days. Liu Hong said the test marks the longest stay in a bioregenerative life support system (BLSS), in which humans, animals, plants and microorganisms co-exist in a closed environment, simulating a lunar base. [Photo/Xinhua]

The volunteers planted grain such as wheat and corn and dozens of types of produce like carrots, tomatoes, mushrooms and cucumbers. Their harvest was part of their diet. They also grew mealworms that they processed into a source of protein, cooked with a little oil and water.

The second group completed a 200-day stay, breaking a world record set in the former Soviet Union when three people stayed for 180 days in a similar closed system in the early 1970s.

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