In this Week in Photos, C-Space Project Mars simulation base opens to public in Gobi Desert, Gansu province; Beijing International Film Festival concludes in the Chinese capital; and people celebrate the Dai New Year in Xishuangbanna, Yunnan province.

People splash each other with water during the Dai ethnic group’s New Year celebrations in Xishuangbanna Dai Autonomous Prefecture, Yunnan province, April 15, 2019. Duan Jian/VCG

Visitors walk through an exhibition themed around Disney’s “Dumbo” at Times Square in Hong Kong, April 18, 2019. Hong Shaokui/China News Service/VCG

An interior view of excavated ruins in Maqiao Town in Shanghai, April 16, 2019. IC

People watch a virtual reality movie at the Beijing International Film Festival, April 16, 2019. Andrea Verdelli/Getty Images/VCG

Firefighters work to douse flames on the Hulun Buir grasslands, Inner Mongolia Autonomous Region, April 19, 2019. IC

A staff member wearing a mock space suit poses at the C-Space Project Mars simulation base in the Gobi Desert near Jinchang, Gansu province, April 18, 2019. Thomas Peter/Reuters/VCG

A man walks through a sandstorm in the northeastern city of Harbin, Heilongjiang province, April 16, 2019. Zhang Tao/Getty Images/VCG