Portal:Spaceflight/On This Day/25 May


 * 1961 - In a famous speech before the United States Congress, President Kennedy announced his support for Project Apollo.
 * 1965 - A Saturn I launches the A-104 and Pegasus 2 spacecraft.
 * 1965 - A Voskhod launches the Kosmos 67 satellite.
 * 1966 - A Delta C launches the Explorer 32 spacecraft.
 * 1972 - A Voskhod launches the Kosmos 491 satellite.
 * 1972 - A Thorad-Agena launches a CORONA satellite.
 * 1973 - A Kosmos-3M fails to launch an unknown satellite.
 * 1973 - A Saturn IB launches the manned Skylab 2 mission.
 * 1973 - A Voskhod launches the Kosmos 561 satellite.
 * 1977 - A Kosmos-3M launches the Kosmos 911 satellite.
 * 1978 - A Soyuz-U launches the Kosmos 1012 satellite.
 * 1979 - A Soyuz-U launches the Kosmos 1102 satellite.
 * 1982 - A Soyuz-U launches the Kosmos 1369 satellite.
 * 1984 - A Soyuz-U launches the Kosmos 1558 satellite.
 * 1989 - A Soyuz-U launches a Resurs-F satellite.
 * 1994 - A Tsyklon-3 fails to launch an unknown satellite.
 * 1996 - A Proton-K launches a Gorizont satellite.
 * 2004 - A Soyuz-U launches the Progress M-49 spacecraft to resupply the ISS.
 * 2007 - A Long March 2D conducts China's 100th successful orbital launch, with the Yaogan 2 satellite.
 * 2008 - The Phoenix robotic spacecraft lands on Mars.
 * 2013 - A Delta IV launches USA-243 for the Wideband Global SATCOM system.