Photo taken on May 29, 2019 shows a Mars simulation base in the barren, windswept hills of Jinchang City, Northwest China’s Gansu Province. Planned to cover 67 square kilometers, Mars Base 1 Camp will include nine modules including a greenhouse and a mock decompression chamber. Authorities hope the camp will boost tourism and allow visitors to feel as though they are on the Red Planet. (Photo: China News Service/Li Yalong)

Photo taken on May 29, 2019 shows a Mars simulation base in the barren, windswept hills of Jinchang City, Northwest China’s Gansu Province. Planned to cover 67 square kilometers, Mars Base 1 Camp will include nine modules including a greenhouse and a mock decompression chamber. Authorities hope the camp will boost tourism and allow visitors to feel as though they are on the Red Planet. (Photo: China News Service/Li Yalong)

Photo taken on May 29, 2019 shows a Mars simulation base in the barren, windswept hills of Jinchang City, Northwest China’s Gansu Province. Planned to cover 67 square kilometers, Mars Base 1 Camp will include nine modules including a greenhouse and a mock decompression chamber. Authorities hope the camp will boost tourism and allow visitors to feel as though they are on the Red Planet. (Photo: China News Service/Li Yalong)

Visitors inside a Mars simulation base in the barren, windswept hills of Jinchang City, Northwest China’s Gansu Province, May 29, 2019. Planned to cover 67 square kilometers, Mars Base 1 Camp will include nine modules including a greenhouse and a mock decompression chamber. Authorities hope the camp will boost tourism and allow visitors to feel as though they are on the Red Planet. (Photo: China News Service/Wei Jianjun)

Visitors inside a Mars simulation base in the barren, windswept hills of Jinchang City, Northwest China’s Gansu Province, May 29, 2019. Planned to cover 67 square kilometers, Mars Base 1 Camp will include nine modules including a greenhouse and a mock decompression chamber. Authorities hope the camp will boost tourism and allow visitors to feel as though they are on the Red Planet. (Photo: China News Service/Wei Jianjun)

Visitors inside a Mars simulation base in the barren, windswept hills of Jinchang City, Northwest China’s Gansu Province, May 29, 2019. Planned to cover 67 square kilometers, Mars Base 1 Camp will include nine modules including a greenhouse and a mock decompression chamber. Authorities hope the camp will boost tourism and allow visitors to feel as though they are on the Red Planet. (Photo: China News Service/Wei Jianjun)