A line of soldiers firing handguns during a training session, circa 1920. (Photo by Keystone). P.S. All pictures are presented in high resolution.

Russian cosmonaut Alexander Skvortsov, Expedition 40 flight engineer, attired in a Russian Orlan spacesuit, participates in a session of extravehicular activity (EVA) in support of science and maintenance on the International Space Station on August 18, 2014. During the five-hour, 11-minute spacewalk, Skvortsov and cosmonaut Oleg Artemyev (out of frame) deployed a small science satellite, retrieved and installed experiment packages and inspected components on the exterior of the orbital laboratory. (Photo by NASA)

Residents look on as flames burn through bush on January 04, 2020 in Lake Tabourie, Australia. A state of emergency has been declared across NSW with dangerous fire conditions forecast for Saturday, as more than 140 bushfires continue to burn. There have been eight confirmed deaths in NSW since Monday 30 December. 1365 homes have been lost, while 3.6 million hectares have been burnt this fire season. (Photo by Brett Hemmings/Getty Images)

Halsey performs at Night Two of BUDX Miami by Budweiser on February 02, 2020 in Miami Beach, Florida. (Photo by Noam Galai/Getty Images for BudX)

A Malaysian Royal Guard wears a protective mask while he stands guard outside National Palace, following the outbreak of a new coronavirus in China, in Kuala Lumpur, Malaysia, February 10, 2020. (Photo by Lim Huey Teng/Reuters)

American actress Kaley Cuoco goofs around for the cameras while looking fashionable filming her upcoming TV show “The Flight Attendant” in Manhattan on February 12, 2020. (Photo by LRNYC/The Mega Agency)

The International Space Station (ISS) moves along its orbit above at the Russian leased Baikonur cosmodrome, Kazakhstan, Thursday, July 18, 2019, with a statue of Soviet Union founder Vladimir Lenin in the foreground. Circular star tracks around the Polar Star and tracks of the ISS is the result of the camera multiple exposure with a total duration of two hours. (Photo by Dmitri Lovetsky/AP Photo)

The Canton Tower and skyscrapers are illuminated during a rehearsal for the 2023 Guangzhou International Light Festival on November 20, 2023 in Guangzhou, Guangdong Province of China. The 12th Guangzhou International Light Festival will be held from November 21 to 30. (Photo by Wu Wenjun/VCG via Getty Images)