Portal:Spaceflight/On This Day/4 July

• 1967 - A Voskhod launches the Kosmos 168 satellite.
• 1968 - A Delta J launches the Explorer 38 spacecraft.
• 1973 - A Voskhod fails to launch an unknown satellite.
• 1975 - A Kosmos-3M launches the Kosmos 749 satellite.
• 1977 - A Kosmos-3M launches the Kosmos 924 satellite.
• 1987 - A Soyuz-U launches the Kosmos 1863 satellite.
• 1989 - A Kosmos-3M launches the Nadezhda satellite.
• 1991 - A Delta II launches the GPS IIA-11 satellite.
• 1997 - Mars Pathfinder lands in the Ares Vallis region on Mars.
• 2000 - A Proton-K launches the Kosmos 2371 satellite.
• 2005 - The Deep Impact spacecraft encounters comet 9P/Tempel and blasts a crater in its surface.
• 2006 - Space Shuttle Discovery launches on mission STS-121.