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First telescopic observation of the night sky: Discovery of Jupiter's moons, Lunar craters and the phases of Venus. Observation by Galileo Galilei.
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First clear telescopic photograph of another world: The Moon. Photograph was taken by William Moore
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Robert Goddard files for and is subsequently awarded U.S. patents on multistage and liquid-fueled rockets.
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Robert Goddard launches the first liquid-fueled rocket.
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Society for Space Travel has been formed; it includes many top European rocket scientists.
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First German military liquid-fueled rocket engines developed. The researcher for the rockets was a German scientist named Walter Riedel
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Group for the Study of Reactive Motion (GIRD) launches the first Soviet liquid-fueled rocket.
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First vehicle to cross the Kármán line (100 km/~62 mi above the Earth's surface) and thereby enter outer space.
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First space research flight (cosmic radiation experiments) by the U.S.
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First animals in space (fruit flies) launched by the U.S.
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First firing of a rocket in Earth orbit, first reaching Earth escape velocity or Trans Lunar Injection and first detection of solar wind.
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First photograph of Earth from orbit taken by NASA's explorer 6.
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First impact into another world (the Moon) and first delivery of national (USSR) pennants to a celestial body.
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First firing of a rocket in Earth orbit, first reaching Earth escape velocity or Trans Lunar Injection and first detection of solar wind.
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First plants and animals to return alive from earths orbit.
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First human space flight (Yuri Gagarin) and first human crewed orbital flight.
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First planetary flyby ( within 100,000km of Venus with no data returned).
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First soft landing on another world (the moon) and first photos from another world.
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First human landing on the moon and first space launch from another celestial body with Apollo 11.
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First soft landing on another planet (Venus) and first signals from another.
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First Reusable manned spacecraft (orbital). Launched by NASA and called STS-1.
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First spacecraft beyond the orbit of Neptune (first spacecraft to pass beyond all Solar System planets).
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First consistently inhabited long-term research space station(USSR) called Mir.
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First photograph of the entire solar system.
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First polar orbit around the Sun. Launched by NASA and ESA.
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Record longest duration spaceflight (437.7 days) set by Valeri Polyakov.
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First operational rover on another planet (Mars) launched by NASA.
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First multinational space station, and largest man-made object built in space to date. Launched by Russia, USA, Europe, Japan, and Canada.
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Kepler Mission is launched, first space telescope designated to search for Earth-like exoplanets. Launched by NASA.
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First food eaten that was grown in space (lettuce).