Portal:Spaceflight/On This Day/25 August

• 1958 - A Pilot fails to launch a scientific satellite.
• 1961 - A Scout X-1 launches the Explorer 13 satellite.
• 1962 - A Molniya fails to launch an unknown satellite.
• 1963 - A Thor-Agena launches a CORONA satellite.
• 1964 - A Scout X-4 launches the Explorer 20 satellite.
• 1965 - A Delta C fails to launch the OSO-C satellite.
• 1965 - A Voskhod launches the Kosmos 79 satellite.
• 1977 - A Delta 2313 launches the Sirio satellite.
• 1983 - A Proton-K launches a Raduga satellite.
• 1988 - A Scout G-1 launches the SOOS 4 satellite.
• 1991 - An H-I launches the BS-3B satellite.
• 1994 - A Soyuz-U launches the Progress M-24 spacecraft to resupply Mir.
• 1997 - A Delta II launches the ACE satellite.
• 1998 - An Ariane 4 launches the ST-1 satellite.
• 2003 - A Delta IIH launches the SIRTF spacecraft
• 2009 - The Naro-1 fails during its maiden flight after only half of the fairing separates, resulting in the loss of the STSAT-2A spacecraft.
• 2012 - Neil Armstrong dies at the age of 82.