Weakened by sickness and malnutrition, Arbty Mohammad, 2, lies in the Banadir Hospital on August 12, 2011 in Mogadishu, Somalia. Some 100,000 Somalis have flooded into Mogadishu from drought and famine stricken areas of the country. The UN warned Friday that a cholera epidemic could spread through Mogadishu, as Somalis fill unsanitary makeshift camps throughout the capital. (Photo by John Moore/Getty Images)

In this April 2, 2015 photo, dog owner Laura Aquilina strolls with her two year old Rottweiler Brutus, who was recently fitted with prosthetics on all four paws, and is currently learning to use them, near Aquilina's home in Loveland, Colo. Brutus lost all four paws to frostbite as a puppy while under care of a breeder, and Aquilina began caring for him about a year ago. (Photo by Brennan Linsley/AP Photo)

“People and Space”. Winner: Wanderer in Patagonia by Yuri Zvezdny (Russia) A lone stargazer stares up at the stars of our galaxy, the Milky Way, as they stretch across the night sky over the glacier “White Stones” (Piedras Blancas) in the Los Glaciares National Park, Argentina. El Chaltén, Santa Cruz Province, Argentina, 27 September 2016 iOptron Sky-Tracker mount, Sony A7S camera, 18 mm f/2.8 lens, ISO 5000, 30-second exposure Wanderer in Patagonia. (Photo by Yuri Zvezdny/Insight Astronomy Photographer of the Year 2017)

Kashmiri women walk in a garden covered with fallen Chinar leaves on the outskirts of Srinagar, Indian controlled Kashmir, Wednesday, November 4, 2020. Kashmiris collect fallen leaves in autumn to make charcoal for use during winters. (Photo by Dar Yasin/AP Photo)

Supporters of US President Donald J. Trump gather for a rally in Freedom Plaza to protest Congress's upcoming certification of Joe Biden as the next president in Washington, DC, USA, 05 January 2021. Various groups of Trump supporters announced rallies on 06 January 2021 as Congress meets to certify the results of the 2020 US Presidential election. (Photo by Shawn Thew/EPA/EFE)

Camila Iachini, 8, performs with her bike during celebrations for the 400th anniversary of the founding of the neighbourhood Petare, in Caracas, Venezuela on February 17, 2021. (Photo by Leonardo Fernandez Viloria/Reuters)

A woman has her photo taken wearing tradtional clothing as a Tibetan Buddhist woman and her family walk the kora near the Jokhang Temple, a UNESCO heritage site, during a government organized visit for journalists on June 1, 2021 in Lhasa, Tibet Autonomous Region, China. (Photo by Kevin Frayer/Getty Images)

Members of the Chinese military orchestra march past a screen showing the Chinese Communist flag on Tiananmen Square before a celebration marking the 100th founding anniversary of the Chinese Communist Party, in Beijing, China, 01 July 2021. China celebrates on 01 July the 100th anniversary of the founding of the ruling Chinese Communist Party. (Photo by Roman Pilipey/EPA/EFE)