The first human in space, Yuri Gagarin, launched by USSR in 1961. The first successful Pluto human mission, planned by NASA in 2080. The first successful comet human mission, planned by NASA in 2090. The first successful Pluto orbiter, New Horizons, by USA in 2015. The first successful Saturn colony, planned by NASA in 2080. The first successful Saturn flyby by Pioneer 11 by USA in 1979. The first successful Venus landing by Venera 7 by USSR in 1970. Launch of Sputnik 1 by USSR in 1957, the first artificial satellite. The first successful Mars landing by Viking 1 by USA in 1976. The first woman in space, Valentina Tereshkova, launched by USSR in 1963. The first successful Neptune orbiter, Voyager 2, by USA in 1989. The first successful Venus human mission, planned by NASA in 2030. The first successful Neptune sample return mission, Voyager 2, by USA in 1989. The first successful Neptune flyby by Voyager 2 by USA in 1989. The first successful asteroid sample return mission, Hayabusa, by Japan in 2010. The first successful asteroid human mission, planned by NASA in 2100. The first successful Mars orbiter, Mariner 9, by USA in 1971. The first spacewalk by Alexei Leonov of USSR in 1965. The first successful Uranus orbiter, Voyager 2, by USA in 1986. The first successful Uranus colony, planned by NASA in 2090. The first space station, Salyut 1, launched by USSR in 1971. The first successful asteroid colony, planned by NASA in The launch of the Hubble Space Telescope by USA in 1990. The first successful Mars colony, planned by SpaceX in 2050. The first successful Jupiter human mission, planned by NASA in 2040. The first successful Pluto flyby by New Horizons by USA in 2015. The first successful Mars sample return mission, Perseverance, by USA in 2021. The first successful manned mission to the moon, Apollo 11, by USA in 1969. The first successful Jupiter orbiter, Galileo, by USA in 1995. The first successful Saturn human mission, planned by NASA in 2050. The first successful Jupiter sample return mission, Galileo, by USA in 1995. The first successful Mars human mission, planned by SpaceX in 2024. The first successful Neptune colony, planned by NASA in 2100. The first successful Jupiter flyby by Pioneer 10 by USA in 1973. The first successful Jupiter colony, planned by NASA in 2070. The first successful asteroid landing by NEAR Shoemaker by USA in 2001. The first successful Pluto sample return mission, New Horizons, by USA in 2015. The first successful Venus sample return mission, Venera 16, by USSR in 1983. The first successful comet landing by Philae by ESA in 2014. The first successful Uranus sample return mission, Voyager 2, by USA in 1986. The first successful Saturn sample return mission, Cassini, by USA in 2004. The first successful Uranus human mission, planned by NASA in 2060. The first successful Venus orbiter, Venera 9, by USSR in 1975. The first successful Venus colony, planned by NASA in 2060. The first successful Saturn orbiter, Cassini, by USA in 2004. The first successful comet orbiter, Rosetta, by ESA in 2014. The first successful comet colony, planned by NASA in 2120. The first successful comet sample return mission, Stardust, by USA in 2006. The first successful Neptune human mission, planned by NASA in 2070. The first successful Pluto colony, planned by NASA in 2110. The first successful Mars rover, Sojourner, by USA in 1997. The first successful Uranus flyby by Voyager 2 by USA in 1986. The first successful asteroid orbiter, NEAR Shoemaker, by USA in 2000.

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