A mural on an apartment block created as part of the Urban Morphogenesis street art festival in the Novaya Tryokhgorka residential neighbourhood in the town of Odintsovo in Moscow Region, Russia on August 31, 2019. (Photo by Valery Sharifulin/TASS)

Veiled Thai women take a selfie on the Talo Kapo beach enjoying Eid al-Fitr on June 5, 2019 in Pattani, Thailand. Today is Eid al-Fitr, or Festival of Breaking the Fast, which marks the end of Ramadan, the Islamic holy month of fasting. (Photo by Paula Bronstein/Getty Images)

The Vattenfall Solar Team car “Nuna” from the Netherlands competes in the Challenger class on Day 2 of the 2019 Bridgestone World Solar Challenge at Elliott on October 14, 2019 in Elliott Australia. Teams from across the globe are competing in the 2019 World Solar Challenge – a 3000 km solar-powered vehicle race between Darwin and Adelaide. The race starts on the 13th of October in Darwin in the Northern Territory and travels the Stuart Highway to Port Augusta and then via Highway 1 to finish in the City of Adelaide in South Australia. (Photo by Mark Evans/Getty Images for SATC)

Advanced Space Suit Engineer at NASA Kristine Davis wears the xEMU prototype space suit for the next astronaut to the moon by 2024, during its presentation at NASA headquarters in Washington, U.S., October 15, 2019. (Photo by Carlos Jasso/Reuters)

A Kurdish fighter from the People's Protection Units (YPG) fires his rifle at Islamic State militants as he runs across a street in Raqqa, Syria, July 2017. (Photo by Goran Tomasevic/Reuters)

LiLou the therapy pig stands in front of a departures board at San Francisco International Airport in San Francisco, California, U.S. October 4, 2019. (Photo by Jane Ross/Reuters)

Bolivian wrestler Ana Luisa Yujra (L), aka “Jhenifer Two Faces” and Lidia Flores, aka “Dina, The Queen of the Ring”, both members of the Fighting Cholitas, fight at Sharks of the Ring wrestling club in El Alto, Bolivia, on November 24, 2019. After a fortnight hiatus due to anti-government protests and blockades, the Fighting Cholitas are back in the ring. The unrest was triggered by the disputed October 20 election, which Evo Morales claimed to have won and opposition groups said was rigged. (Photo by Ronaldo Schemidt/AFP Photo)

A man is silhouetted as he stands on a walkway in the sky lobby at the Chancellery, the seat of German Chancellor Angela Merkel (not pictured) in Berlin, May 7, 2014. (Photo by Thomas Peter/Reuters)