These are the dunes of the Namib Desert, taken by Korea's Kompstat-2 satellite. The blue and white area is the dried riverbed of the Tsauchab river. (Photo by The European Space Agency)

A swimmer stops short of a red algae bloom at Sydney's Clovelly Beach on November 27, 2012, which closed some beaches for swimming including Bondi Beach for a period of time. While the red algae, known as Noctiluca scintillans or sea sparkle, has no toxic effects, people are still advised to avoid swimming in areas with discoloured water because the algae, which can be high in ammonia, can cause skin irritation. (Photo by William West/AFP Photo)

British actress Iris Law arrives for the screening of the film “Forever Young (Les Amandiers)” at the 75th edition of the Cannes Film Festival in Cannes, southern France, on May 22, 2022. (Photo by Piroschka Van De Wouw/Reuters)

Mexican fashion model Daniela de Jesus Cosio attends the screening of “Nostalgia” during the 75th annual Cannes film festival at Palais des Festivals on May 24, 2022 in Cannes, France. (Photo by Sarah Meyssonnier/Reuters)

Shanghai Ballet dancers wearing masks practise in a dance studio in Shanghai, China, as the country is hit by an outbreak of the novel coronavirus, February 20, 2020. (Photo by Aly Song/Reuters)

A resident pulls back a rope with groceries tied to the end of it, delivered by community workers, at a residential compound under sealed management in Yichang, Hubei province, China on February 22, 2020. (Photo by Reuters/China Daily)

Charlotte Roirdan, from Lyon and Turnbull, poses near portrait of a woman wearing a bikini made entirely out of postcards of the Queen on April 20, 2012 in Edinburgh, Scotland. The portrait Girl in a Yellow Bikini by David Mach, is estimated to raise between £4000 to £6000 at their Scottish Contemporary Sale to be held on April 25. (Photo by Jeff J. Mitchell)