Explorer 1 | February 1, 1958 | Designed and developed the science instrument on the first successful U.S. satellite, which lead to the discovery of Earth's radiation belts | Explorer 3 | March 1958 | Designed and developed the first tape recorder for spaceflight | Injun 1 | June 29, 1961 | First university to design, assemble, operate, and track a successful satellite | Mariner 2 | August 1962 | Instrumentation on the first flight to another planet (Venus) | Mariner 4 | November 1964 | Instrumentation on the first flight to Mars | Pioneer 10 | March 1972 | Instrumentation on the first flight to Jupiter | Pioneer 11 | April 1973 | Instrumentation on the first flight to Saturn | Pioneer 10 | December 1973 | Discovery of radiation belts at Jupiter | Voyager 2 | August 1977 | Instrumentation on the first flight to Uranus | Voyager 2 | August 1977 | Instrumentation on the first flight to Neptune | Pioneer 10/11 | 1979 | Discovery and first survey of radiation belts of Saturn | Voyager 1 | 1979 | Establish the presence of lightning at Jupiter | Plasma Diagnostics Package | July 1985 | First satellite released and recovered during a space shuttle mission | ISEE 3 | September 1985 | Instrumentation on the first flyby of a comet (Comet Giacobini-Zinner) | Galileo | October 1989 | Instrumentation on the first orbiter of Jupiter | Galileo | October 1991 | In situ measurements of the asteroid Gaspra | Galileo | August 1993 | In situ measurements of the asteroid Ida | Galileo | June 1996 | Discovery of the first magnetosphere of a planetary moon (Ganymede) | Cassini | October 1997 | Instrumentation on the first orbiter of Saturn | Galileo/Cassini | December 2000 | Three scientific instruments on two spacecraft simultaneously collected data at Jupiter | Mars Express | 2004 | First subsurface and ionospheric radar measurements at Mars | Voyager 2 | August 2007 | First measurements of plasma waves at heliospheric termination shock | Cassini | December 2010 | First measurements of lightning from a global storm on Saturn | Voyager 1 | Oct./Nov. 2012 | First man-made object to enter interstellar space and make measurements in interstellar medium | Mars Express | October 2014 | First measurements during a close comet flyby of Mars (Comet Siding-Spring) | Juno | July 2016 | Instrument on the first polar orbiter of Jupiter | HaloSat | May 2018 | First astrophysics-focused and competitively selected CubeSat mission funded by NASA's Astrophysics Division |
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