Pupils of the Dao ethnic tribe return home from school along a hillside path at Suoi Thau village in Hoang Su Phi district of Vietnam's northern province of Ha Giang, located at the border with China, September 18, 2015. (Photo by Reuters/Kham)

A picturesque supercell formation in the northwest of Booker, Texas from June 2013. (Photo by Mike Olbinski/Barcroft Media)

Tiny pieces of space rocks, called meteorites, are seen burning in the atmosphere over the night sky near Salgótarján, some 109km northeast of Budapest, Hungary, 21 April 2018 (issued 22 April 2018). (Photo by Peter Komka/EPA/EFE)

On Guard, Indonesia, by Riksa Dewantara. The explosive eruption and loud rumbling of the Mount Bromo volcano in Bromo Semeru Tengger national park scared the horse causing it to rear up onto its hind legs. Second place, Journeys and Adventures category. (Photo by Riksa Dewantara/SIPA Contest)

A picture taken on August 7, 2017 shows a Snow Leopard (Panthera uncia) at the NABU center (Nature and Biodiversity Conservation Union), a German organization that aims at reintroducing the panther and fighting against poaching, near the Issyk Kul lake, in the outskirts of Semenovka village, some 330 kilometers southeast of Bishkek, the capital of Kyrgyzstan. (Photo by Vyacheslav Oseledko/AFP Photo)

In this August 31, 2017, photo, mock fish are displayed to offer to the ancestors during the “Hungry Ghost Festival” in Hong Kong. Countless hungry and restless ghosts are roaming Hong Kong, and the world, to visit their living ancestors, at least according to Chinese convention. In traditional Chinese belief, the seventh month of the lunar year is reserved for the Hungry Ghost festival, or Yu Lan, a raucous celebration marked by feasts and music. (Photo by Kin Cheung/AP Photo)

A Chinese tourist wears a mask as she arrives at Suvarnabhumi Airport during a welcome ceremony of Chinese Lunar New Year travellers in Bangkok, Thailand on January 22, 2020. (Photo by Soe Zeya Tun/Reuters)

Mirlene Verdieu watches television as she rests in a room at the Hospital of the State University of Haiti, which is one of the centers affected by a three-month-long strike by health workers demanding a pay rise and resources, in Port-au-Prince, Haiti, June 20, 2016. (Photo by Andres Martinez Casares/Reuters)