Spot, a robot with dog-like movements, walks past a dog in Cathedral Square in Erfurt, Germany on April 20, 2021. Security service provider Ciborius, a provider of robotic security solutions with artificial intelligence, presented its artificial employee with high-resolution 360-degree all-round camera, ultra-bright LED light and a light detection system on Domplatz. (Photo by Michael Reichel/dpa)

British troops covered in flames from a petrol bomb thrown during a violent protest by job seekers, who say they were promised employment in the security services, in the southern Iraq city of Basra, March 22, 2004. (Photo by Atef Hassan/Reuters)

Girls hold hands as they arrive their New Year parties in Newcastle, England on December 31, 2019. (Photo by Craig Connor/North News and Pictures)

A Palestinian man waves from his home as a clown and a man in a costume perform to entertain people amid concerns about the spread of the coronavirus disease (COVID-19), in Khan Younis in the southern Gaza Strip on April 19, 2020. (Photo by Ibraheem Abu Mustafa/Reuters)

A woman from the Turkana tribe waits at a shop at the village of Lorengippi near the town of Lodwar, Turkana county, Kenya, July 3, 2020. (Photo by Baz Ratner/Reuters)

A photo taken by a member of the County Durham and Darlington fire and rescue Service of a coach on fire on the A1 in County Durham, England on March 2, 2017. Passengers were evacuated safely before flames engulfed the vehicle. (Photo by County Durham and Darlington Fir/PA Wire)

The brutalist war memorials found throughout the former Yugoslavia were weird enough when they were built in the 1960s and 70s. Today, separated by the end of an architectural movement and the disintegration of the country, they seem almost alien. Belgian photographer Jan Kempenaers treats them purely as artistic objects in his book, “Spomenik”, named for the Serb-Croat word for monument. Known for photographing geographical oddities, Kempenaers was captivated by the spomenik after seeing them in an art encyclopedia. After hearing that many had been destroyed or abandoned, he set out to record what was left. (Photo by Jan Kempenaers)

The antennas of the European Southern Observatory's Atacama Large Millimeter/Submillimeter Array, also known as ALMA, are set against the splendor of the Milky Way in this picture by Babak Tafreshi. Construction of the full ALMA array is due to be completed in Chile's Atacama Desert in 2013, but the facility is already making scientific observations with a partial array of antennas. (Photo by ESO/B. Tafreshi/TWAN)