Portal:Spaceflight/On This Day/30 August
- 1961 - A Thor-Agena launches the Discoverer 29 satellite.
- 1972 - A Voskhod launches the Kosmos 517 satellite.
- 1973 - A Molniya-M launches a Molniya-1 satellite.
- 1973 - A Voskhod launches the Kosmos 583 satellite.
- 1974 - A Voskhod fails to launch an unknown satellite.
- 1974 - A Scout D-1 launches the ANS satellite.
- 1976 - A Feng Bao 1 launches the JSSW 701-07 satellite.
- 1977 - A Molniya-M launches a Molniya-1 satellite.
- 1982 - A Kosmos-3M fails to launch an unknown satellite.
- 1982 - A Tsyklon-2 launches the Kosmos 1402 satellite.
- 1983 - Space Shuttle Challenger launches on mission STS-8 to deploy the INSAT-1B satellite.
- 1983 - A Molniya-M launches a Molniya-3 satellite.
- 1984 - A Soyuz-U launches the Kosmos 1591 satellite.
- 1984 - Space Shuttle Discovery launches on its maiden flight, STS-41-D, a mission to deploy the SBS-D, Telstar 3-C and Syncom IV-2 satellites, and conduct the OAST-1 experiment..
- 1988 - A Molniya-M launches the Kosmos 1966 satellite.
- 1990 - An Ariane 4 launches the Eutelsat 2F1 and Skynet 4C satellites.
- 1991 - A Mu-3S-II launches the Yohkoh satellite.
- 1991 - A Zenit-2 fails to launch a Tselina satellite, on the third consecutive attempt.
- 1993 - A Delta II launches the GPS IIA-22 satellite.
- 1995 - A Proton-K launches the Kosmos 2319 satellite.
- 1998 - A Proton-K launches the Astra 2A satellite.
- 2001 - An Ariane 4 launches the Intelsat 902 satellite.
- 2007 - Voyager 2 enters the Heliosheath, 84 AU from the Sun.
- 2012 - An Atlas V launches the Van Allen Probes to study the Van Allen radiation belt.