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Space

  • 18 Dec 1966

    Astronomer Richard Walker discovered Saturn's moon, Epimetheus.

  • 18 Mar 1965

    Cosmonaut Alexey Leonov made the first spacewalk when he left his Voskhod 2 spacecraft.

  • 12 Oct 1964

    The USSR's Voskhod 1 spacecraft became the first spaceflight with multiple crew members.

  • 16 Jun 1963

    Cosmonaut Valentina Tereshkova became the first woman in space.

  • 28 Jul 1962

    The Soviet Union launched its second reconnaissance satellite, Kosmos 4.

  • 22 Jul 1962

    The Mariner 1 Space Probe was forced to self-destruct minutes after launching.

  • 16 Sep 1961

    Pakistan established its national space agency, the SUPARCO.

  • 5 May 1961

    Alan Shepard became the first American to travel to outer space.

  • 12 Apr 1961

    The world's first person visited space.

  • 31 Jan 1961

    A chimpanzee named Ham became the first primate to go to space aboard the US MR-2 spacecraft.

  • 4 Oct 1957

    Sputnik 1 became Earth's first artificial satellite to go into orbit.

  • 14 Jun 1949

    The US launched the first monkey into space aboard a V2 sounding rocket.

  • 1 May 1930

    Pluto was officially named.

  • 18 Feb 1930

    American astronomer Clyde Tombaugh discovered Pluto.

  • 30 Dec 1924

    Astronomer Edwin Hubble formally announced the existence of other galactic systems at a meeting of the American Astronomical Society.

  • 23 Nov 1924

    The New York Times published Edwin Hubble's discovery that the Andromeda 'nebula' is actually a galaxy.

  • 13 Aug 1898

    Carl Gustav Witt discovered the first near-Earth asteroid, 433 Eros.

  • 18 Mar 1898

    American Astronomer William Henry Pickering discovered Phoebe, one of Saturn's moons.

  • 22 Dec 1891

    Asteroid 323 Brucia became the first asteroid discovered using photography.

  • 5 Aug 1864

    Italian astronomer Giovanni Donati became the first person to observe the spectrum of a comet.

  • 31 Jan 1862

    Alvan Graham Clark discovered the white dwarf star Sirius B.

  • 10 Sep 1858

    George Mary Searle discovered the asteroid 55 Pandora.

  • 25 Mar 1857

    Frederick Langenheim took the first photo of a solar eclipse.

  • 10 Oct 1846

    British astronomer William Lassell discovered Neptune's largest moon, Triton.

  • 29 Apr 1826

    The galaxy Centaurus A was discovered by Scottish astronomer James Dunlop.

  • 1 Sep 1804

    German Astronomer Karl Ludwig Harding discovered the 3 Juno asteroid in the Asteroid Belt.

  • 1 Jan 1801

    The dwarf planet Ceres was discovered by an Italian monk called Giuseppe Piazzi.

  • 13 Mar 1781

    Astronomer William Herschel first observed Uranus.

  • 2 May 1780

    William Herschel discovered the first binary star.

  • 13 Oct 1773

    Charles Messier discovered the Whirlpool Galaxy.

  • 9 Mar 1611

    Dutch astronomer Johannes Fabricius discovered sunspots.

  • 8 Oct 1604

    Kepler's Supernova was discovered.

  • 11 Nov 1572

    Danish astronomer Tycho Brahe witnessed the supernova SN 1572.

  • 26 Apr 1514

    Astronomer Nicolaus Copernicus made his first observation of Saturn.

  • 22 Apr 1056

    The final gasps of the Crab Head nebula were observed as it went supernova.

  • 4 Jul 1054

    Chinese astronomers reported the brightest supernova known to man.

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