The sun rises through the thick fog that covers the city of Frankfurt, Germany, Friday, November 12, 2021. (Photo by Michael Probst/AP Photo)

American Ballet Theater's dancers are silhouetted as they rehearse for the opening night at the Shanghai Grand Theater in Shanghai, Thursday, November 2, 2023. The American national ballet company is returning to China for the first time in a decade for shows in Shanghai and Beijing in the latest sign strained relations between the United States and China are beginning to thaw. (Photo by Ng Han Guan/AP Photo)

Walkers marvel at a fog bow over Curbar Edge, Derbyshire in the last decade of October 2023. The phenomenon is similar to a rainbow, but because the water droplets that cause fog are so small, its colours are very weak. (Photo by Richard Bowring/Animal News Agency)

People watch the light installation “Onion Skin” by artist Oliver Ratsi performed during the Vilnius 700th anniversary celebration, in Vilnius, Lithuania, 25 January 2023. (Photo by Valda And Kalniņa/EPA/EFE)

Starlings gather on power lines at dusk, Friday, October 21, 2022, in Overland Park, Kan. (Photo by Charlie Riedel/AP Photo)

A woman crosses the street on a foggy morning in Frankfurt, Germany, Friday, October 29, 2021. (Photo by Michael Probst/AP Photo)

Acrobat Indira Avila leaves the ring as performer Glenn Falco warms up backstage ahead of a dress rehearsal at the newly renovated Blackpool Tower Circus, in Blackpool, Britain, March 28, 2022. (Photo by Phil Noble/Reuters)

This is the moment a diver appears to shake hands with a giant 52ft whale. The divers were just metres away when one humpback whale – which weighs 36,000kg – extends its giant flipper in a peaceful manner. (Photo by Masa Ushioda/SeaPics/Solent News & Photo Agency)