Shannon McGurgan (Bottom), Farhad Ahadi (Middle) and Malia Walsh (Top) perform the Circus Trick Tease on stage at a media call ahead of the inaugural Melbourne Circus Festival on September 23, 2011 in Melbourne, Australia. The National Institute of Circus Arts will showcase artists from around the world during the first ever circus festival in Melbourne from September 26 – October 2. (Photo by Hamish Blair/Getty Images)

US Vogue’s top fashion editor works with photographers to inject style with sci-fi and fantasy. A new book, “Stoppers: Photographs from My Life at Vogue” by Phyllis Posnick and Vogue’s chief editor, Anna Wintour, highlights the results. Here: Surburban Woman #10, Mountainville, New York, August 2006. (Photo by Steven Klein)

The two dogs Travis, 10, and Gus, 5 have become an Internet hit on Instagram. These images were taken by Canadian photographer Steph McCombie. (Photo by Steph McCombie/Instagram)

Two dogs sent into outer space by the Soviet Union after their safe return to earth. They spent 22 days in orbit. (Photo by Central Press/Getty Images). 22nd March 1966

Nicki Minaj shows off to the crowd on top of a music truck during the Trinidad and Tobago Carnival in Port of Spain, Trinidad and Tobago, 26 February 2020. Minaj apologized on 26 February for her husband's behavior after a video showing Petty pushing a well-known local artist. The man had touched Minaj to allegedly encourage her in her performance. (Photo by Dexter Phillip via MoPho for London Entertainment/Splash News and Pictures)

In this Thursday, February 14, 2019, photo, a Transformer's Bumblebee mascot helps a woman carries paper bags at a shopping mall in Handan in north China's Hebei province. U.S. and Chinese envoys are holding a second day of trade talks after the top economic adviser to President Donald Trump said he has yet to decide whether to go ahead with a March 2 tariff increase on imports from China. (Photo by Chinatopix via AP Photo)

Soap Bubble Structures by Kym Cox. Bubbles optimise space and minimise their surface area for a given volume of air. This phenomenon makes them a useful tool in many areas of research, in particular, materials science and “packing” – how things fit together. Bubble walls drain under gravity, thin at the top, thick at the bottom, which interferes with travelling lightwaves to create bands of colour. Black spots show the wall is too thin for interference colours, indicating the bubble is about to burst. (Photo by Kym Cox/2019 Science Photographer of the Year/RPS)