A reveller performs during the first night of carnival parade at the Sambadrome in Rio de Janeiro, Brazil on February 23, 2020. (Photo by Carl de Souza/AFP Photo)
A man from Dinka tribe holds his AK-47 rifle in front of cows in a Dinka cattle herders camp near Rumbek, capital of the Lakes State in central South Sudan December 14, 2013. (Photo by Goran Tomasevic/Reuters)
The players of Denmark huddle prior to the FIFA Women's World Cup qualifier match between Denmark and Sweden at Viborg Stadion on September 4, 2018 in Viborg, Denmark. (Photo by Lars Ronbog/FrontZoneSport via Getty Images)
The International Garden Photographer of the Year has announced the winner of their Black & White Photo Project 2019. Here: Blue Tit, Criccieth, Wales. (Photo by Alan Price/The International Garden Photographer of the Year)
British troops in Afghanistan are now using 10-centimeter-long 16-gram spy helicopters to survey Taliban firing spots. The UK Defense Ministry plans to buy 160 of the drones under a contract worth more than $31 million.