British theoretical physicist Stephen Hawking, Cambridge University Professor and Fellow, circa 1985. Stephen Hawking, the brightest star in the firmament of science, whose insights shaped modern cosmology and inspired global audiences in the millions, has died aged 76. (Photo by Gemma Levine/Getty Images)

A girl in an angel costume walks with her family past vegetable vendors in Havana, Cuba, Wednesday, April 10, 2019. (Photo by Ramon Espinosa/AP Photo)

Traffic lights feature illustrations of a homosexual couple in downtown Frankfurt Main, Germany, 18 July 2019. An annual gay pride parade will take place on 20 July 2019 in Frankfurt to commemorate Christopher Street Day (CSD). The event commemorates the riots that erupted following a police raid in 1969 at a gay bar on Christopher Street in Greenwich Village, New York City. (Photo by Armando Babani/EPA/EFE)

A cat dressed in a traditional Ukrainian embroidered shirt takes part in a parade in Kiev, Ukraine on May 28, 2016. (Photo by Gleb Garanich/Reuters)

A woman poses for pictures with skulls made of cardboard placed on an altar next to the San Francisco church in Mexico City during the celebration of All Souls Day on November 2, 2015. (Photo by Yuri Cortez/AFP Photo)

PH Sport's driver Sebastian Loeb races against an airplane during a performance act at the Peru Dakar Rally in Lima, Peru on January 5, 2019. (Photo by Carlos Jasso/Reuters)

Tourists take photos from a panoramic viewing deck on Victoria Peak in Hong Kong, China, 26 January 2019. Hong Kong has been ranked the world's freest economy by the Heritage Foundation, a conservative research and educational institution based in Washington, for the 25th consecutive year, but the researchers also said the judiciary had become less effective. (Photo by Jerome Favre/EPA/EFE)

Japanese women wearing “yukata” casual summer kimono take selfies at Asakusa district in Tokyo, Japan, 13 September 2020. Asakusa is one of Tokyo's most-visited areas and is usually crowded with tourists. In Japan, the numbers of visitors from abroad fell by 99.9 percent from a year earlier in July due to the ban for entries of foreign visitors amid the coronavirus pandemic. (Photo by Franck Robichon/EPA/EFE)