Portal:Spaceflight/On This Day/4 February


 * 1960 - A Thor-Agena launches a Discoverer spy satellite.
 * 1961 - A Molniya rocket launches a Venera spacecraft, however it fails to reach heliocentric orbit due to an upper stage malfunction.
 * 1970 - A Thorad-Agena launches SERT 2, a technology development satellite.
 * 1976 - A Mu-3C fails to launch the Corsa A technology development satellite, after a second stage malfunction.
 * 1978 - A Mu-3H launches the Kyokko Auroral research satellite.
 * 1983 - An N-II rocket launches the Sakura 2A communication satellite.
 * 1986 - A Soyuz-U launches a Zenit-8 spy satellite.
 * 1990 - A Long March 3 launches the Zhongxing-3 communication satellite.
 * 1998 - An Ariane 4 launches the Brazilsat B3 and Inmarsat-3-F5 communication satellites.
 * 2002 - An H-IIA rocket launches two technology development satellites.