Portal:Spaceflight/On This Day/23 August

• 1961 - An Atlas-Agena launches the Ranger 1 probe.
• 1962 - A Scout X-2 launches the FTV-3502 satellite.
• 1967 - A Thor-Burner launches the DAPP-3419 satellite.
• 1969 - A Titan 23B launches a KH-8 satellite.
• 1973 - An Atlas-Centaur launches the Intelsat 407 satellite.
• 1983 - A Soyuz-U launches the Kosmos 1493 satellite.
• 1985 - A Tsyklon-2 launches the Kosmos 1677 satellite.
• 1988 - A Soyuz-U launches the Kosmos 1964 satellite.
• 1988 - A Soyuz-U launches the Kosmos 1965 satellite.
• 1989 - A Soyuz-U2 launches the Progress M-1 spacecraft to resupply Mir.
• 1990 - A Tsyklon-2 launches the Kosmos 2096 satellite.
• 1994 - A Molniya-M launches a Molniya-3 satellite.
• 1997 - An Athena-1 launches the Lewis satellite.
• 2000 - The last Delta III fails to launch a demonstration satellite.
• 2005 - A Dnepr-1 launches the OICETS and INDEX satellites.