The NASA Extreme Environment Mission Operations (NEEMO) 21 mission began on July 21 as an international crew of aquanauts splashed down to the undersea Aquarius Reef Base, located 62 feet below the surface of the Atlantic Ocean in the Florida Keys National Marine Sanctuary. The NEEMO 21 crew will perform research both inside and outside the habitat during a 16-day simulated space mission. During simulated spacewalks carried out underwater, they will evaluate tools and mission operation techniques that could be used in future space missions, including journeys to Mars. (Photo by Karl Shreeves/NASA)

Popular Mobilization Forces (PMF) fires towards Islamic State militants during a battle with Islamic State militants, west of Mosul, Iraq February 22, 2017. (Photo by Reuters/Stringer)

CANADA: Stanley Ferdinand filets large trout he caught in Great Bear Lake in Deline, Northwest Territories, Canada September 8, 2016. (Photo by Pat Kane/Reuters)

A boy reaches for a ball on a creek clogged with plastic waste on April 15, 2023 in Caloocan, Metro Manila, Philippines. (Photo by Ezra Acayan/Getty Images)

Peasants celebrate a traditional festival “Corpus Cristhi” since the time of the conquest, in Anolaima in the department of Cundinamarca, Colombia on June 29, 2022. Peasants collect all kinds of fruits and assemble great representative figures in gratitude to God for this festival. (Photo by Yair Suarez/Anadolu Agency via Getty Images)

Cardi B attends the Fanatics Super Bowl Party at College Football Hall of Fame on February 2, 2019 in Atlanta, Georgia. (Photo by Shareif Ziyadat/WireImage)

On the afternoon of the January 3, 2025, seagulls are gathering around a child holding shrimp crackers at Haeundae Beach in Busan, South Korea. (Photo by Dong-Hwan Kim)

A member of the Brotherhood of the Diablos Danzantes de Chuao (Dancing Devils of Chuao) arranges his mask during the Corpus Christi festival in the town of Chuao, Aragua state, Venezuela on June 18, 2025. (Photo by Maxwell Briceno/Reuters)