United States Air Force: Did you mean...?

An illustration titled The Scientists by Rita Greer showing the scientists Robert Hooke (1635-1703) and Robert Boyle (1627-1691) conducting an experiment with an air pump.

An August 1941 photograph showing air defences in the Soviet capital during the Battle of Moscow (Oct 41 - Jan 42) during the Second World War (1939-45). (RIA Novosti Archive)

A photograph of civilians in an air raid shelter during the Siege of Leningrad (Saint Petersburg) during Operation Barbarossa, the invasion of the USSR launched by the leader of Nazi Germany Adolf Hitler (1889-1945) in the Second World War...

A photograph of Arthur 'Bomber' Harris, Air Chief Marshal of the RAF and Commander-in-Chief of Bomber Command from 1942 to 1945. Harris was adamant that heavy area bombing of German cities would bring a quicker end to World War II (1939-45...

A photograph taken during the London Blitz of 1940-1 showing the inside of a community air raid shelter built under railway arches. (Imperial War Museums)

Operation Chastise, the 'Dambusters' raid, was an attack by a squadron of RAF Lancaster bombers on the dams of the Ruhr basin in Germany in May 1943. Led by Squadron Leader Guy Gibson, the bombers breached two dams causing enormous flooding...

The Alien and Sedition Acts were four laws passed by President John Adams and the Federalist-controlled Congress in 1798 that restricted immigration and free speech in the United States. Framed by the Federalist Party as a necessary measure...

The entrance of the Dark Church (Karanlık Kilise) in Göreme, Cappadocia, photograph by Sena Bolek, 2025. The rock-cut façade features arched niches and faded red geometric motifs painted on the interior vaults, a characteristic of Byzantine...

The Scientific Revolution (1500-1700) was driven by several key inventions, all scientific instruments that became essential to achieving a greater understanding of the world around us. With instruments like the telescope, microscope, thermometer...

Cologne (Köln) was the first German city to experience a "1,000-bomber raid" by the Royal Air Force during the Second World War (1939-45). The attack took place on the night of 30 May 1942 and was planned as a demonstration of the destruction...