ATHENS: A couple sits on the Tourkovounia hills as southerly winds carry waves of Saharan dust through Athens, Greece, on Tuesday, April 23. Clouds of dust moving from northern Africa to Greece and other regions is a phenomenon that occasionally occurs, bringing limited visibility and prompting warnings of breathing risks (Angelos Tzortzinis/AFP/Getty Images)

MARGARET RIVER: Surfer Gabriela Bryan shares a wave with a pod of dolphins during the final of the Western Australia Margaret River Pro event on Sunday, April 21. She went on to win the competition (Aaron Hughes/World Surf League/Getty Images)

LONDON: Two Household Cavalry horses run through the streets of London after breaking free on Wednesday, April 24. Six soldiers and seven horses were taking part in an exercise that morning when the animals became spooked after some concrete fell off a conveyor belt being used in nearby construction work and hit the ground, according to the British Army (Jordan Pettitt/PA Images/Getty Images)

EL PASO: Michel, a Venezuelan migrant, holds her 7-year-old daughter Aranza at the US-Mexico border near El Paso, Texas, on Wednesday, April 24 (Adrees Latif/Reuters)

LUDZMIERZ: Highlanders walk with their sheep to start the grazing season in Ludźmierz, Poland, on Sunday, April 21. Every year, shepherds visit the local church to celebrate the start of the season and pray for a good grazing (Omar Marques/Anadolu Agency/Getty Images)

WASHINGTON DC: The bat of Los Angeles Dodgers star Shohei Ohtani shatters during a Major League Baseball game in Washington, DC, on Tuesday, April 23 (Geoff Burke/USA Today/Reuters)

ADRE: Refugees stand outside a makeshift shelter as a sandstorm approaches in Adre, Chad, on Sunday, April 21. The war in Sudan has triggered a major hunger crisis in the country, and many have fled to neighboring Chad and South Sudan (Dan Kitwood/Getty Images)

SCARBOROUGH: A man dressed as "Star Wars" character Chewbacca walks near the Scarborough Spa in Scarborough, England, on Sunday, April 21. The seaside town was hosting a sci-fi convention (Ian Forsyth/Getty Images)

DEAD SEA: People gather around a piece of a ballistic missile near the Dead Sea in Israel on Saturday, April 20. Almost all the ballistic missiles and drones Iran launched at Israel in an unprecedented attack this month were intercepted and failed to meet their mark, according to Israeli and American officials. The attack followed an Israeli strike on an Iranian diplomatic complex in Syria (Itamar Grinberg/AP)

SITARO: The Mount Ruang volcano erupts in Sitaro, Indonesia, on Saturday, April 20. Authorities ordered hundreds of villagers to evacuate following multiple eruptions.(Ronny Adolof/AFP/Getty Images)