Muslim pilgrims pray on top of the rocky hill known as Mountain of Mercy on the Plain of Arafat during the annual hajj pilgrimage near the holy city of Mecca, Saudi Arabia, Thursday, July 30, 2020. Only about 1,000 pilgrims will be allowed to perform the annual hajj pilgrimage this year due to the virus pandemic. (Photo by Saudi Ministry of Media via AP Photo)

A staff member demonstrates how she puts on the helmet of a mock space suit at the C-Space Project Mars simulation base in the Gobi Desert outside Jinchang, Gansu Province, China, April 17, 2019. The facility – comprising several interconnected modules including a greenhouse and a mock decompression chamber – opened its doors to the public. (Photo by Thomas Peter/Reuters)

Pittsburgh police officers stand near a Port Authority bus that had fallen into a sinkhole along 10th Street and Penn Avenue in Pittsburgh on Monday, October 28, 2019. The bus and a car fell in the sinkhole shortly before 8 a.m. One person was taken to the hospital for a minor injury. (Photo by Kristina Serafini/Pittsburgh Tribune-Review via AP Photo)

A zoo keeper carries a pelican to move it to its winter enclosure at Dvur Kralove Zoo in Dvur Kralove nad Labem, Czech Republic on November 5, 2019. (Photo by David W. Cerny/Reuters)

Zhu Jianqiang, or “strong-willed pig”, famous for surviving more than a month buried in the ruins after the magnitude-8.0 Wenchuan earthquake in 2008, feeds on food sent by admirers wishing it a safe winter in Jianchuan Museum, Chengdu city, southwest China's Sichuan province, 11 January 2021. (Photo by Rex Features/Shutterstock)

Vietnamese dentist Tran Phuong Thao and her husband Tran Minh Hieu wearing protective masks, kiss at their wedding ceremony during the coronavirus disease (COVID-19) outbreak in Hanoi, Vietnam on January 28, 2021. (Photo by Kham via Reuters)

Transgender woman Angeles Rojas enters a room at Banco Nación where she works in Buenos Aires, Argentina, Thursday, November 5, 2020. Rojas, 23, joined the most important public bank in Argentina this year as part of the trans labor quota that is part of the public policies in favor of the LGBT community that the South American country has implemented in the last decade. (Photo by Natacha Pisarenko/AP Photo)

A couple kiss in front of a barricade set by demonstrators during clashes with police following a protest condemning the arrest of rap singer Pablo Hasél in Barcelona, Spain, Thursday, February 18, 2021. Protests over the imprisonment of a rapper convicted for insulting the Spanish monarchy and praising terrorist violence have morphed for the third night in a row into rioting. Pablo Hasél began this week to serve a 9-month sentence in a northeastern prison. (Photo by Emilio Morenatti/AP Photo)