Portal:Spaceflight/On This Day/4 June

• 1964 - A Scout X-4 launches the Transit-5C satellite.
• 1964 - A Thor-Agena launches a CORONA satellite.
• 1964 - A Molniya fails to launch an unknown satellite.
• 1967 - An Atlas-Agena launches an AFP-206 satellite.
• 1968 - A Kosmos-3M fails to launch an unknown satellite.
• 1968 - A Voskhod launches the Kosmos 224 satellite.
• 1971 - A Kosmos-3M launches the Kosmos 426 satellite.
• 1980 - A Vostok-2M launches the Kosmos 1184 satellite.
• 1981 - A Kosmos-3M launches the Kosmos 1275 satellite.
• 1987 - A Molniya-M launches the Kosmos 1849 satellite.
• 1991 - A Tsyklon-3 launches an Okean satellite.
• 1996 - The Ariane 5 fails during its maiden flight, destroying four Cluster satellites.
• 2003 - A Kosmos-3M launches the Kosmos 2398 satellite.
• 2010 - The Falcon 9 rocket performs its maiden flight, deploying a mass simulator into orbit.