Portal:Spaceflight/On This Day/April
1 April[edit]
- 1960 - A Thor-Able launches the first weather satellite, TIROS-1.
- 1963 - A Thor-Agena launches a CORONA satellite.
- 1971 - A Delta E launches the ISIS_(satellite) satellite.
- 1971 - A Tsyklon-2 launches the Kosmos 402 satellite.
- 1975 - A Vostok-2M launches a Meteor satellite.
- 1980 - A Soyuz-U launches the Kosmos 1170 satellite.
- 1992 - A Soyuz-U launches the Kosmos 2182 satellite.
- 1993 - A Kosmos-3M launches the Kosmos 2239 satellite.
- 2002 - A Molniya-M launches the Kosmos 2388 satellite.
2 April[edit]
- 1963 - A Molniya rocket launches the Luna 4 probe.
- 1964 - A Molniya-M launches the Zond 1 probe to Venus.
- 1969 - A Proton-K fails to launch an unknown satellite.
- 1971 - A Voskhod rocket launches the Kosmos 403 satellite.
- 1975 - A Tsyklon-2 launches the Kosmos 723 satellite.
- 1982 - A Soyuz-U launches the Kosmos 1347 satellite.
- 1983 - A Molniya-M launches a Molniya-1 satellite.
- 1989 - An Ariane 2 launches the Tele-X satellite.
- 1992 - A Proton-K launches a Gorizont satellite.
- 1993 - A Soyuz-U launches the Kosmos 2240 satellite.
- 1998 - A Pegasus-XL launches the TRACE satellite.
- 1999 - A Soyuz-U launches the Progress M-41 spacecraft to resupply Mir.
- 1999 - An Ariane 4 launches the INSAT 2E satellite.
- 2003 - A Molniya-M launches a Molniya-1T satellite.
- 2010 - A Soyuz-FG launches the manned Soyuz TMA-18 mission to the ISS.
3 April[edit]
- 1963 - A Delta B launches the Explorer 17 spacecraft.
- 1965 - An Atlas-Agena launches the SNAPSHOT spacecraft.
- 1968 - A Voskhod rocket launches the Kosmos 210 satellite.
- 1970 - A Voskhod rocket launches the Kosmos 329 satellite.
- 1972 - A Voskhod rocket launches the Kosmos 483 satellite.
- 1973 - A Proton-K launches the Salyut 2 space station.
- 1974 - A Soyuz-U launches the Kosmos-638 (Soyuz 7K-TM) spacecraft.
- 1980 - A Kosmos-3M launches the Kosmos 1171 satellite.
- 1984 - A Soyuz-U launches the manned Soyuz T-11 mission.
- 1985 - A Soyuz-U launches the Kosmos 1644 satellite.
- 1990 - A Soyuz-U fails to launch an unknown satellite.
- 1990 - A Shavit launches the Ofeq-2 satellite.
- 1995 - A Pegasus-H launches several Orbcomm satellites.
- 1996 - An Atlas IIA launches the Inmarsat 3F1 satellite.
- 2009 - A Proton-M/Briz-M launches the Eutelsat W2A satellite.
- 2012 - A Delta IV launches the USA-234 reconnaissance satellite.
4 April[edit]
- 1964 - A Vostok-2 rocket launches the Kosmos 28 satellite.
- 1967 - A Vostok-2 rocket launches the Kosmos 153 satellite.
- 1968 - A Saturn V launches the Apollo 6 spacecraft.
- 1969 - A Voskhod rocket launches the Kosmos 276 satellite.
- 1969 - A Kosmos-2I launches the Kosmos 277 satellite.
- 1971 - A Tsyklon-2 launches the Kosmos 404 satellite.
- 1972 - A Molniya-M launches a Molniya-1 satellite.
- 1974 - A Voskhod rocket launches the Kosmos 639 satellite.
- 1978 - A Soyuz-U launches the Kosmos-1001 satellite.
- 1983 - Space Shuttle Challenger makes its maiden flight, STS-6, launching the TDRS-1 satellite.
- 1984 - A Molniya-M launches the Kosmos 1547 satellite.
- 1986 - A Proton-K launches the Kosmos 1738 satellite.
- 1989 - A Kosmos-3M launches the Kosmos 2016 satellite.
- 1991 - A Proton-K launches three GLONASS satellites.
- 1991 - An Ariane 4 launches the Anik E2 satellite.
- 1997 - A Titan 23G launches a DMSP satellite.
- 1997 - Space Shuttle Columbia launches on STS-83, a Spacelab microgravity research mission.
- 2000 - A Soyuz-U launches the manned Soyuz TM-30 spacecraft, with the last crew to visit Mir.
- 2009 - An Atlas V launches the WGS-2 satellite.
- 2011 - A Soyuz-FG launches the manned Soyuz TMA-21 mission to the ISS.
5 April[edit]
- 1963 - A Scout X-3 fails to launch the Transit VA-2 satellite.
- 1973 - A Molniya-M launches a Molniya-2 satellite.
- 1975 - A Soyuz rocket fails to launch a maned flight which would have been the Soyuz 18 mission had it reached orbit.
- 1977 - A Vostok-2M launches a Meteor satellite.
- 1977 - A Kosmos-2I launches the Kosmos 901 satellite.
- 1988 - A Kosmos-3M launches the Kosmos 1937 satellite.
- 1990 - The Pegasus rocket makes its maiden flight, launching the Pegsat and NavySat satellites.
- 1991 - Space Shuttle Atlantis launches the Compton Gamma Ray Observatory on mission STS-37.
- 1995 - A Shavit launches the Ofeq-3 satellite.
- 2009 - A Unha fails to launch the Kwangmyŏngsŏng-2 satellite.
- 2010 - Space Shuttle Discovery launches on the STS-131 mission to the International Space Station.
6 April[edit]
- 1962 - A Kosmos-2I launches the Kosmos 2 satellite.
- 1963 - A Kosmos-2I fails to launch an unknown satellite.
- 1965 - A Delta D launches the Intelsat I (Early Bird) satellite.
- 1966 - A Voskhod rocket launches the Kosmos 114 satellite.
- 1967 - An Atlas-Agena launches the ATS-2 satellite.
- 1968 - An Atlas E/F launches the OV1-13 and 14 satellites.
- 1972 - A Voskhod rocket launches the Kosmos 484 satellite.
- 1973 - An Atlas-Centaur launches the Pioneer 11 probe.
- 1976 - A Kosmos-3M launches the Kosmos 812 satellite.
- 1978 - A Soyuz-U launches the Kosmos 1002 satellite.
- 1983 - A Kosmos-3M launches the Kosmos 1450 satellite.
- 1984 - Space Shuttle Challenger launches on the STS-41-C mission to deploy the LDEF and repair the Solar Max satellite.
- 1989 - A Soyuz-U launches the Kosmos 2017 satellite.
- 1990 - A Kosmos-3M launches the Kosmos 2064-Kosmos 2071 satellites.
- 1993 - A Molniya-M launches the Kosmos 2241 satellite.
- 1997 - A Soyuz-U launches the Progress M-34 spacecraft to resupply Mir.
7 April[edit]
- 1966 - A Thor-Agena launches a CORONA satellite.
- 1968 - A Molniya-M launches the Luna 14 probe.
- 1970 - A Kosmos-3M launches the Kosmos 330 satellite.
- 1971 - A Vostok-2M launches the Kosmos 405 satellite.
- 1972 - A Voskhod rocket launches the Interkosmos-6 satellite.
- 1975 - A Tsyklon-2 launches the Kosmos 724 satellite.
- 1976 - A Vostok-2M launches a Meteor satellite.
- 1977 - A Soyuz-U launches the Kosmos 902 satellite.
- 1978 - An Atlas-Agena launches the OPS 8790 satellite.
- 1978 - A Delta 2914 launches the BSE satellite.
- 1979 - A Kosmos-3M launches the Kosmos 1091 satellite.
- 1981 - A Soyuz-U launches the Kosmos 1262 satellite.
- 1982 - A Molniya-M launches the Kosmos 1348 satellite.
- 1990 - A Long March 3 launches the Asiasat 1 satellite.
- 1995 - An Atlas IIA launches the AMSC 1 satellite.
- 1998 - A Proton-K/DM-5 launches seven Iridium satellites.
- 2001 - A Delta II launches the Mars Odyssey probe.
- 2001 - A Proton-M launches an Ekran-M satellite.
- 2007 - A Soyuz-FG launches the manned Soyuz TMA-10 mission to the ISS.
8 April[edit]
- 1961 - A Thor-Agena launches the Discoverer 23 satellite.
- 1964 - A Titan II launches the Gemini 1 spacecraft.
- 1966 - An Atlas-Centaur fails to launch a boilerplate Surveyor spacecraft.
- 1966 - An Atlas-Agena launches the OAO A1 satellite.
- 1967 - A Proton-K fails to launch the Kosmos 154 spacecraft.
- 1970 - A Thorad-Agena launches the Nimbus 4 satellite.
- 1970 - A Voskhod rocket launches the Kosmos 331 satellite.
- 1970 - A Titan IIIC launches the Vela 6A and 6B satellites.
- 1975 - A Kosmos-2I launches the Kosmos 725 satellite.
- 1982 - A Kosmos-3M launches the Kosmos 1349 satellite.
- 1983 - A Proton-K launches a Raduga satellite.
- 1983 - A Soyuz-U launches the Kosmos 1451 satellite.
- 1984 - A Long March 3 launches the first operational STW satellite.
- 1987 - A Tsyklon-2 launches the Kosmos 1834 satellite.
- 1992 - A Soyuz-U launches the Kosmos 2183 satellite.
- 1993 - Space Shuttle Discovery launches on the ATLAS-2 (Spacelab) mission, STS-56.
- 1996 - A Proton-K launches the Astra 1F satellite.
- 2002 - Space Shuttle Atlantis launches on mission STS-110 with the ITS S0 Truss for the ISS.
- 2003 - A Titan IV launches a Milstar satellite.
- 2008 - A Soyuz-FG launches the Soyuz TMA-12 mission to the ISS, with the first South Korean in space, and the first second-generation space traveller.
- 2010 - A Dnepr-1 launches the CryoSat-2 ice monitoring satellite.
9 April[edit]
- 1959 - NASA formally selected its first astronauts, the Mercury Seven.
- 1962 - An Atlas-Agena launches the Midas 5 satellite.
- 1968 - A Kosmos-2I launches the Kosmos 211 satellite.
- 1969 - A Voskhod rocket launches the Kosmos 278 satellite.
- 1975 - A Delta 1410 launches the Geos 3 satellite.
- 1976 - A Voskhod rocket launches the Kosmos 813 satellite.
- 1980 - A Soyuz-U launches the manned Soyuz 35 mission.
- 1981 - A Kosmos-3M launches the Kosmos 1263 satellite.
- 1986 - A Soyuz-U launches the Kosmos 1739 satellite.
- 1987 - A Soyuz-U launches the Kosmos 1835 satellite.
- 1994 - Space Shuttle Endeavour launches on mission STS-59.
- 1995 - A Soyuz-U launches the Progress M-27 spacecraft to resupply Mir.
- 1997 - A Molniya-M launches the Kosmos 2340 satellite.
- 1999 - A Titan IV fails to launch a DSP satellite.
- 2003 - An Ariane 5 launches the Galaxy 12 and Insat 3A satellites.
- 2007 - A Proton-M launches the Anik F3 satellite.
- 2011 - A Long March 3A launches the Beidou-2 I1 satellite for the Chinese Beidou Navigation Satellite System.
- 2014 - A Shavit 2 launches the Israeli Ofeq-10 reconnaissance satellite
10 April[edit]
- 1965 - A Molniya fails to launch an unknown satellite.
- 1974 - A Titan IIID launches a KH-9 satellite.
- 1979 - A Soyuz-U launches the manned Soyuz 33 mission.
- 1982 - A Delta 3910 launches the Insat 1A satellite.
- 1984 - A Soyuz-U launches the Kosmos 1548 satellite.
- 1992 - A Delta II launches a GPS satellite.
11 April[edit]
- 1969 - A Molniya-M launches a Molniya-1 satellite.
- 1970 - A Kosmos-3M launches the Kosmos 332 satellite.
- 1970 - A Saturn V launches the manned Apollo 13 mission to the Moon.
- 1972 - A Kosmos-2I launches the Kosmos 485 satellite.
- 1974 - A Voskhod rocket launches the Kosmos 640 satellite.
- 1975 - A Kosmos-3M launches the Kosmos 726 satellite.
- 1977 - A Molniya-M launches the Kosmos 903 satellite.
- 1979 - A Kosmos-3M launches the Kosmos 1092 satellite.
- 1983 - A Delta 3924 launches the Satcom 1R satellite.
- 1988 - A Soyuz-U launches the Kosmos 1938 satellite.
- 1990 - An Atlas E/F launches three P87-2 satellites.
- 1990 - A Soyuz-U launches a Foton spacecraft.
- 1994 - A Proton-K launches three GLONASS satellites.
- 2005 - A Minotaur I launches the XSS-11 satellite.
- 2007 - A Long March 2C launches the HY-1B satellite.
12 April[edit]
- 1961 - Yuri Gagarin becomes the first man to fly in space, aboard Vostok 1.
- 1964 - A Polyot launches the Polyot-2 spacecraft.
- 1967 - A Voskhod rocket launches the Kosmos 155 satellite.
- 1973 - A Kosmos-2I launches the Kosmos 553 satellite.
- 1974 - A Voskhod rocket fails to launch an unknown satellite.
- 1979 - A Molniya-M launches a Molniya-1 satellite.
- 1980 - A Molniya-M launches the Kosmos 1172 satellite.
- 1981 - Space Shuttle Columbia launches on the Space Shuttle programme's maiden flight, STS-1
- 1983 - A Kosmos-3M launches the Kosmos 1452 satellite.
- 1985 - Space Shuttle Discovery launches on mission STS-51-D to deploy the TELESAT-l and SYNCOM IV-3 satellites.
- 1999 - An Atlas IIAS launches the Eutelsat W3 satellite.
- 2003 - An Atlas IIIB launches the Asiasat 4 satellite.
- 2005 - A Long March 3B launches the Apstar 6 satellite.
- 2006 - A Zenit-3SL launches the JCSAT-9 satellite.
- 2012 - A Unha fails to launch the first Kwangmyŏngsŏng-3 satellite.
13 April[edit]
- 1959 - A Thor-Agena launches the Discoverer 2 satellite.
- 1960 - A Thor-Ablestar launches the Transit 1B satellite.
- 1963 - A Kosmos-2I launches the Kosmos 14 satellite.
- 1967 - A Lambda-4S fails to launch an unknown satellite.
- 1969 - An Atlas-Agena launches an AFP-827 satellite.
- 1974 - A Delta 2914 launches the Westar 1 satellite.
- 1975 - An Atlas E/F fails to launch the STP P72-2 satellite.
- 1976 - A Tsyklon-2 launches the Kosmos 814 satellite.
- 1985 - A Zenit-2 fails to launch an unknown satellite.
- 1990 - A Soyuz-U launches the Kosmos 2072 satellite.
- 1990 - A Delta II launches the Palapa B2R satellite.
- 1991 - A Delta II launches the Spacenet 4 satellite.
- 1994 - An Atlas I launches the GOES 8 satellite.
- 2007 - A Long March 3A launches the Beidou 2A satellite.
14 April[edit]
- 1959 - A Vanguard rocket fails to launch a Vanguard satellite.
- 1967 - A Scout A launches the NNS O-12 satellite.
- 1968 - A Soyuz rocket launches the Kosmos-212 satellite.
- 1969 - A Thorad-Agena launches the Nimbus 3 satellite.
- 1971 - A Voskhod rocket launches the Kosmos 406 satellite.
- 1972 - A Molniya-M launches a Prognoz SO-M satellite.
- 1972 - A Voskhod rocket launches the Kosmos 486 satellite.
- 1975 - A Molniya-M launches a Molniya-3 satellite.
- 1979 - A Vostok-2M launches the Kosmos 1093 satellite.
- 1984 - A Titan 34D launches the DSP-12 satellite.
- 1988 - A Soyuz-U launches a Foton satellite.
- 1989 - A Proton-K launches a Raduga satellite.
- 2008 - An Atlas V launches the ICO G1 satellite.
- 2009 - A Long March 3C launches the Beidou-2 G2 navigation satellite.
- 2015 - A Falcon 9 v1.1 launches SpaceX CRS-6 to resupply the ISS.
15 April[edit]
- 1960 - A Thor-Agena launches the Discoverer 11 satellite.
- 1960 - A Vostok-L fails to launch an unknown satellite.
- 1968 - A Soyuz rocket launches the Kosmos-213 spacecraft.
- 1969 - A Voskhod rocket launches the Kosmos 279 satellite.
- 1969 - A Titan IIIB launches a KH-8 satellite.
- 1970 - A Voskhod rocket launches the Kosmos 333 satellite.
- 1970 - A Titan 23B launches a KH-8A satellite.
- 1971 - A Diamant-B launches the D-2A satellite.
- 1981 - A Soyuz-U launches the Kosmos 1264 satellite.
- 1982 - A Soyuz-U launches the Kosmos 1350 satellite.
- 1983 - A Titan 24B launches the KH-8A satellite.
- 1984 - A Soyuz-U2 launches the Progress 20 spacecraft to resupply Salyut 7.
- 1986 - A Soyuz-U launches the Kosmos 1740 satellite.
- 1992 - A Kosmos-3M launches the Kosmos 2184 satellite.
- 1992 - An Ariane 4 launches the Inmarsat 2F4 and Telstar 2B satellites.
- 1999 - A Soyuz-U launches several Globalstar satellites.
- 1999 - A Delta II launches the Landsat 7 satellite.
- 2005 - A Soyuz-FG launches the manned Soyuz TMA-6 mission to the ISS.
- 2005 - A Pegasus-XL launches the DART satellite.
- 2006 - A Minotaur I launches five COSMIC satellites.
- 2010 - The first GSLV Mk.II fails to launch the GSAT-4 satellite.
- 2011 - An Atlas V launches the two USA-229 reconnaissance satellites.
- 2013 - A Proton-M launches the Anik G1 satellite.
16 April[edit]
- 1960 - A Vostok-L fails to launch an unknown satellite.
- 1972 - A Saturn V launches the manned Apollo 16 mission to the Moon.
- 1975 - A Soyuz-U launches the Kosmos 727 satellite.
- 1981 - A Soyuz-U launches the Kosmos 1265 satellite.
- 1985 - A Soyuz-U launches the Kosmos 1645 satellite.
- 1987 - A Soyuz-U launches the Kosmos 1836 satellite.
- 1991 - A Kosmos-3M launches the Kosmos 2142 satellite.
- 1993 - A Tsyklon-3 launches the Kosmos 2242 satellite.
- 1997 - An Ariane 4 launches the Thaicom 3 and BSAT 1a satellites.
- 2002 - An Ariane 4 launches the NSS 7 satellite.
- 2004 - An Atlas IIAS launches the Superbird 6 satellite.
- 2008 - A Pegasus-XL launches C/NOFS
- 2010 - A Soyuz-U launches the Kosmos 2462 Kobal't-M reconnaissance satellite.
17 April[edit]
- 1965 - A Voskhod rocket launches the Kosmos 65 satellite.
- 1967 - An Atlas-Centaur launches the Surveyor 3 probe.
- 1968 - A Titan IIIB launches the KH-8 satellite.
- 1971 - A Vostok-2M launches a Meteor satellite.
- 1980 - A Soyuz-U launches the Kosmos 1173 satellite.
- 1983 - An SLV launches the Rohini 3 satellite.
- 1984 - A Titan 24B launches a KH-8 satellite.
- 1986 - A Kosmos-3M launches the Kosmos 1741 satellite.
- 1990 - A Soyuz-U launches the Kosmos 2073 satellite.
- 1997 - A Kosmos-3M launches the Kosmos 2341 satellite.
- 1998 - Space Shuttle Columbia launches on Neurolab mission STS-90.
- 2000 - A Proton-K launches the SESAT satellite.
- 2007 - A Dnepr launches the a collection of small satellites.
18 April[edit]
- 1962 - A Thor-Agena launches the Discoverer 39 satellite.
- 1968 - A Voskhod rocket launches the Kosmos 214 satellite.
- 1968 - A Kosmos-2I launches the Kosmos 215 satellite.
- 1975 - A Voskhod rocket launches the Kosmos 728 satellite.
- 1975 - A Titan 24B launches a KH-8 satellite.
- 1979 - A Tsyklon-2 launches the Kosmos 1094 satellite.
- 1980 - A Tsyklon-2 launches the Kosmos 1174 satellite.
- 1980 - A Molniya-M fails to launch the Kosmos 1175 satellite.
- 1985 - A Tsyklon-2 launches the Kosmos 1646 satellite.
- 1986 - A Molniya-M launches a Molniya-3 satellite.
- 1986 - A Titan 34D fails to launch a KH-9 satellite.
- 1991 - An Atlas I fails to launch the Yuri 3H satellite.
- 2001 - The GSLV makes its maiden flight, launching the GSAT-1 satellite.
- 2004 - A Long March 2C launches the Shiyan-1 and NX-1 satellites.
- 2008 - An Ariane 5ECA launches Star One C-2, and Vinasat-1, Vietnam's first satellite.
19 April[edit]
- 1966 - An Atlas-Agena launches an AFP-206 satellite.
- 1971 - A Proton-K launches Salyut 1, the world's first space station.
- 1972 - A Thorad-Agena launches a CORONA satellite.
- 1973 - A Voskhod rocket launches the Kosmos 554 satellite.
- 1973 - A Kosmos-2I launches the Kopernik 500 satellite.
- 1975 - A Kosmos-3M launches the Aryabhata satellite.
- 1982 - A Proton-K launches the Salyut 7 space station.
- 1983 - A Kosmos-3M launches the Kosmos 1453 satellite.
- 1984 - A Soyuz-U launches the Kosmos 1549 satellite.
- 1985 - A Soyuz-U launches the Kosmos 1647 satellite.
- 1992 - A Soyuz-U2 launches the Progress M-12 spacecraft to resupply Mir.
- 2000 - An Ariane 4 launches the Galaxy 4R satellite.
- 2001 - Space Shuttle Endeavour launches on mission STS-100 to resupply the International Space Station.
- 2004 - A Soyuz-FG launches the manned Soyuz TMA-4 mission to the International Space Station.
- 2008 - Soyuz TMA-11 lands in Russia, following a ballistic re-entry.
- 2013 - A Soyuz-2-1a launches the Bion-M1 biological science satellite and 6 cubesats.
- 2021 - Ingenuity, a small robotic helicopter operating on Mars performed the first powered aircraft flight on another planet in human history
20 April[edit]
- 1964 - A Molniya-M fails to launch an unknown satellite.
- 1966 - A Vostok-2 rocket launches the Kosmos 115 satellite.
- 1967 - A Delta E launches the ESSA 5 satellite.
- 1968 - A Voskhod rocket launches the Kosmos 216 satellite.
- 1973 - A Delta 1914 launches the Anik A2 satellite.
- 1974 - A Molniya-M launches a Molniya-1 satellite.
- 1977 - A Soyuz-U launches the Kosmos 904 satellite.
- 1977 - A Delta 2914 launches the Geos 1 satellite.
- 1978 - A Soyuz-U launches the Kosmos 1003 satellite.
- 1979 - A Soyuz-U launches the Kosmos 1095 satellite.
- 1983 - A Soyuz-U launches the crewed Soyuz T-8 mission.
- 1988 - A Vostok-2M launches the Kosmos 1939 satellite.
- 1989 - A Soyuz-U launches the Kosmos 2018 satellite.
- 1990 - A Kosmos-3M launches the Kosmos 2074 satellite.
- 1996 - An Ariane 4 launches the MSAT-1 satellite.
- 2004 - A Delta II launches the Gravity Probe B satellite.
- 2006 - An Atlas V 411 launches the Astra 1KR satellite.
- 2009 - A PSLV launches the RISAT-2 and ANUSAT satellites.
- 2009 - A Zenit-3SL launches the Sicral 1B satellite.
- 2011 - A PSLV launches Resourcesat-2 and two other satellites.
- 2012 - A Soyuz-U launches the Progress M-15M spacecraft to resupply the ISS.
- 2017 - A Soyuz-FG launches the crewed Soyuz MS-04 mission to the ISS
21 April[edit]
- 1964 - A Thor-Ablestar fails to launch a Transit satellite.
- 1968 - A Molniya-M launches a Molniya-1 satellite.
- 1972 - A Kosmos-2I launches the Kosmos 487 satellite.
- 1981 - A Tsyklon-2 launches the Kosmos 1266 satellite.
- 1982 - A Kosmos-3M launches the Kosmos 1351 satellite.
- 1982 - A Soyuz-U launches the Kosmos 1352 satellite.
- 1987 - A Soyuz-U2 launches the Progress 29 spacecraft to resupply Mir.
- 1993 - A Molniya-M launches a Molniya-3 satellite.
- 1995 - An Ariane 4 launches the ERS 2 satellite.
- 1997 - A Pegasus-XL launches the Minisat-1 satellite.
- 1999 - The Dnepr makes its maiden flight, launching the UoSAT-12 satellite.
- 2013 - The Antares rocket makes its maiden flight, launching a mass simulator and 4 cubesats.
22 April[edit]
- 1963 - A Vostok-2 rocket launches the Kosmos 15 satellite.
- 1966 - A Scout B launches the OV3-1 satellite.
- 1968 - A Proton-K fails to launch an unknown satellite.
- 1971 - A Titan 23B launches a KH-8 satellite.
- 1971 - A Soyuz rocket launches the manned Soyuz 10 mission.
- 1975 - A Kosmos-3M launches the Kosmos 729 satellite.
- 1976 - A Delta 2914 launches the NATO 3A satellite.
- 1983 - A Soyuz-U launches the Kosmos 1454 satellite.
- 1984 - A Proton-K launches a Gorizont satellite.
- 1987 - A Soyuz-U launches the Kosmos 1837 satellite.
- 2009 - A Long March 2C launches the Yaogan-6 satellite.
- 2010 - An Atlas V launches the first flight of the Boeing X-37 unmanned spaceplane.
- 2011 - An Ariane 5 ECA launches the Yahsat 1A and Intelsat New Dawn satellites.
23 April[edit]
- 1962 - An Atlas-Agena launches the Ranger 4 probe.
- 1964 - An Atlas-Agena launches an AFP-206 satellite.
- 1965 - A Molniya rocket launches a Molniya-1 satellite.
- 1967 - A Soyuz rocket launches the manned Soyuz 1 mission.
- 1969 - A Voskhod rocket launches the Kosmos 280 satellite.
- 1970 - A Delta M launches the Intelsat III F-7 satellite.
- 1970 - A Kosmos-2I launches the Kosmos 334 satellite.
- 1971 - A Kosmos-3M launches the Kosmos 407 satellite.
- 1974 - A Kosmos-3M launches six Strela satellites.
- 1982 - A Soyuz-U launches the Kosmos 1353 satellite.
- 1983 - A Tsyklon-3 launches the Kosmos 1455 satellite.
- 1986 - A Soyuz-U2 launches the Progress 26 spacecraft to resupply Mir.
- 1994 - A Zenit-2 launches the Kosmos 2278 satellite.
- 1996 - A Proton-K launches the Priroda module of Mir.
- 2007 - A PSLV launches the AGILE satellite.
- 2012 - A Proton-M launches the Yahsat 1B satellite.
24 April[edit]
- 1962 - A Kosmos-2I launches the Kosmos 3 satellite.
- 1967 - Vladimir Komarov becomes the first person to die as a result of an in-flight anomaly, when Soyuz 1 suffers a parachute failure during landing.
- 1968 - A Tsyklon launches the Kosmos 217 satellite.
- 1970 - China conducts its first satellite launch, when a Long March 1 places the DFH-1 satellite into orbit.
- 1970 - A Kosmos-2I launches the Kosmos 335 satellite.
- 1971 - A Scout B launches the San Marco C satellite.
- 1971 - A Kosmos-2I launches the Kosmos 408 satellite.
- 1974 - A Vostok-2M launches a Meteor satellite.
- 1975 - A Voskhod rocket launches the Kosmos 730 satellite.
- 1981 - A Titan 34B launches the OPS 7225 satellite.
- 1987 - A Proton-K fails to launch three GLONASS satellites.
- 1987 - A Soyuz-U launches the Kosmos 1841 satellite.
- 1990 - Space Shuttle Discovery launches on mission STS-31 to deploy the Hubble Space Telescope.
- 1991 - A Tsyklon-3 launches a Meteor satellite.
- 1996 - A Delta II launches the MSX satellite.
- 1996 - A Kosmos-3M launches the Kosmos 2332 satellite.
- 1996 - A Titan IV launches a Mercury satellite.
- 1998 - A Delta II launches several Globalstar satellites.
- 2003 - A Proton-K launches the Kosmos 2397 satellite.
- 2006 - A Soyuz-U launches the Progress M-56 spacecraft to resupply the ISS.
- 2007 - A Minotaur I launches the NFIRE satellite.
- 2010 - A Proton-M launches the SES-1 satellite.
- 2013 - A Soyuz-U launches the Progress M-19M spacecraft to resupply the ISS.
25 April[edit]
- 1961 - An Atlas LV-3B fails to launch the Mercury-Atlas 3 test mission.
- 1964 - A Vostok-2 rocket launches the Kosmos 29 satellite.
- 1966 - A Molniya-M launches a Molniya-1 satellite.
- 1968 - An R-36 launches the Kosmos 218 spacecraft.
- 1970 - A Kosmos-3M launches eight satellites.
- 1972 - A Kosmos-2I fails to launch an unknown satellite.
- 1973 - A Tsyklon-2 fails to launch an unknown satellite.
- 1973 - A Voskhod rocket launches the Kosmos 555 satellite.
- 1979 - A Proton-K launches a Raduga satellite.
- 1979 - A Tsyklon-2 launches the Kosmos 1096 satellite.
- 1981 - A Proton-K launches the Kosmos 1267 satellite.
- 1983 - A Molniya-M launches the Kosmos 1456 satellite.
- 1985 - A Soyuz-U launches the Kosmos 1648 satellite.
- 1990 - A Kosmos-3M launches the Kosmos 2075 satellite.
- 1992 - A Titan 23G launches the USA-81 satellite.
- 1993 - A Pegasus rocket launches the Alexis satellite.
- 1997 - An Atlas I launches the GOES 10 satellite.
- 2000 - A Soyuz-U launches the Progress M1-2 spacecraft to reboost Mir.
- 2002 - A Soyuz-U launches the manned Soyuz TM-34 mission to the ISS.
- 2006 - A Start-1 launches the EROS B satellite.
- 2007 - A Pegasus-XL launches the AIM satellite.
- 2008 - The Long March 3C makes its maiden flight, launching the Tianlian-1 satellite.
26 April[edit]
- 1962 - A Scout X-2 fails to launch the SR-4B satellite.
- 1962 - A Vostok-K launches the Kosmos 4 satellite.
- 1962 - A Thor-Delta launches the first British satellite, Ariel 1.
- 1962 - An Atlas-Agena launches the FTV 2401 satellite.
- 1963 - A Scout X-2 fails to launch the OPS 1298 satellite.
- 1963 - A Thor-Agena fails to launch a CORONA satellite.
- 1966 - A Kosmos-2I launches the Kosmos 116 satellite.
- 1967 - A Scout B launches the San Marco 2 satellite.
- 1967 - A Titan IIIB fails to launch a KH-8 satellite.
- 1968 - A Kosmos-2I launches the Kosmos 219 satellite.
- 1974 - A Molniya-M launches a Molniya-2 satellite.
- 1977 - A Soyuz-U launches the Kosmos 905 satellite.
- 1978 - A Scout F launches the HCMM satellite.
- 1980 - An Atlas E/F launches the GPS-I-6 satellite.
- 1983 - A Soyuz-U launches the Kosmos 1457 satellite.
- 1985 - A Molniya-M launches a Prognoz satellite.
- 1988 - A Scout G-1 launches the SOOS 3 satellite.
- 1988 - A Proton-K launches the Kosmos 1940 satellite.
- 1989 - A Soyuz-U launches a Foton spacecraft.
- 1990 - A Molniya-M launches a Molniya-1 satellite.
- 1993 - Space Shuttle Columbia launches on mission STS-55, a Spacelab research mission.
- 1994 - A Kosmos-3M launches the Kosmos 2279 satellite.
- 2003 - A Soyuz-FG launches the manned Soyuz TMA-2 mission to the ISS.
- 2004 - A Proton-K launches the Ekspress AM-11 satellite.
- 2005 - A Zenit-3SL launches the Spaceway 1 satellite.
- 2006 - The first Long March 4C launches the Yaogan 1 satellite.
- 2008 - A Soyuz-FG/Fregat launches GIOVE-B.
- 2012 - A PSLV launches RISAT-1.
- 2013 - A Long March 2D launches Gaofen 1 and 3 cubesats.
- 2013 - A Soyuz-2-1b / Fregat launches the Kosmos 2485 GLONASS-M navigation satellite.
27 April[edit]
- 1958 - A Sputnik fails to launch an unknown satellite.
- 1961 - A Juno II launches the Explorer 11 spacecraft.
- 1964 - A Thor-Agena launches a CORONA satellite.
- 1967 - A Vostok-2M launches the Kosmos 156 satellite.
- 1977 - A Kosmos-3M launches the Kosmos 906 satellite.
- 1979 - A Soyuz-U launches the Kosmos 1097 satellite.
- 1980 - A Soyuz-U launches the Progress 9 spacecraft to resupply Salyut 6.
- 1987 - A Tsyklon-3 launches the Kosmos 1842 satellite.
- 1988 - A Soyuz-U launches the Kosmos 1941 satellite.
- 1993 - A Soyuz-U launches the Kosmos 2243 satellite.
- 1999 - An Athena-2 fails to launch the Ikonos-1 satellite.
- 2008 - The Mobile Service Structure at Cape Canaveral LC-40 is demolished.
- 2010 - A Kosmos-3M launches the Kosmos-2463 satellite.
- 2011 - A Soyuz-U launches the Progress M-10M spacecraft to resupply the ISS.
28 April[edit]
- 1963 - A Vostok-2 rocket launches the Kosmos 16 satellite.
- 1965 - An Atlas-Agena launches an AFP-206 satellite.
- 1967 - A Titan IIIC launches two Vela satellites.
- 1970 - A Vostok-2M launches a Meteor satellite.
- 1971 - A Kosmos-3M launches the Kosmos 409 satellite.
- 1976 - A Voskhod rocket launches the Kosmos 815 satellite.
- 1976 - A Kosmos-3M launches the Kosmos 816 satellite.
- 1977 - A Molniya-M launches a Molniya-3 satellite.
- 1981 - A Soyuz-U launches the Kosmos 1268 satellite.
- 1982 - A Kosmos-3M launches the Kosmos 1354 satellite.
- 1983 - A Soyuz-U launches the Kosmos 1458 satellite.
- 1983 - A Delta 3914 launches the GOES 6 satellite.
- 1990 - A Molniya-M launches the Kosmos 2076 satellite.
- 1991 - Space Shuttle Discovery launches on mission STS-39.
- 1993 - A Tsyklon-2 launches the Kosmos 2244 satellite.
- 1994 - A Soyuz-U launches the Kosmos 2280 satellite.
- 1998 - An Ariane 4 launches the Nilesat 101 and BSAT 1b satellites.
- 1999 - A Kosmos-3M launches the ABRIXAS and Megsat satellites.
- 2001 - A Soyuz-U launches the manned Soyuz TM-32 mission, with Dennis Tito, the first space tourist aboard.
- 2003 - A Pegasus-XL launches the GALEX satellite.
- 2006 - A Delta II launches the Calipso and Cloudsat satellites.
- 2008 - A PSLV launches the Cartosat-2A and 10 other satellites.
- 2008 - The first Zenit-3SLB launches the Amos-3 satellite.
- 2010 - A Soyuz-U launches the Progress M-05M spacecraft to resupply the ISS.
29 April[edit]
- 1958 - A Vanguard rocket fails to launch a Vanguard satellite.
- 1962 - A Thor-Agena launches a CORONA satellite.
- 1965 - A Scout X-4 launches the Explorer 27 satellite.
- 1965 - A Thor-Agena launches a CORONA satellite.
- 1974 - A Voskhod rocket launches the Kosmos 649 satellite.
- 1974 - A Kosmos-3M launches the Kosmos 650 satellite.
- 1975 - A Molniya-M launches a Molniya-1 satellite.
- 1980 - A Tsyklon-2 launches the Kosmos 1176 satellite.
- 1980 - A Soyuz-U launches the Kosmos 1177 satellite.
- 1982 - A Tsyklon-2 launches the Kosmos 1355 satellite.
- 1985 - Space Shuttle Challenger launches on mission STS-51-B, a Spacelab research flight.
- 1992 - A Soyuz-U launches a Resurs-F satellite.
- 1992 - A Soyuz-U launches the Kosmos 2185 satellite.
- 1998 - A Proton-K launches the Kosmos 2350 satellite.
- 2009 - A Soyuz-U launches the Kosmos 2250 Kobal't-M satellite.
- 2012 - A Long March 3B launches the Beidou-2 M3 and M4 satellites for the Chinese Beidou Navigation Satellite System.
30 April[edit]
- 1976 - An Atlas E/F launches a cluster of NOSS satellites.
- 1996 - An Atlas I launches the Beppo-SAX satellite.
- 1999 - A Titan IV fails to launch the Milstar 3 satellite.
- 2005 - A Titan IV launches the Lacrosse-5 satellite.