It's been 3965 days
since New Horizons' closest approach to Pluto on July 14, 2015.
It's been 2698 days
since New Horizons' closest approach to 2014 MU69 on January 1, 2019.
Questions? Comments? Send me an email:

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Current Date
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63rd day of Spring
30 days until Summer
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Sunday
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Monday
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Tuesday
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Wednesday
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Thursday
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Friday
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Saturday
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45 years ago, in 1915:
The National Advisory Committee for Aeronautics (NACA) is formed.
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1 year ago, in 1959:
Pioneer 4 is launched for a lunar flyby, becomes the first U.S. probe to escape Earth's gravity.
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285 years ago, in 1675:
John Flamsteed is appointed as the first Astronomer Royal; The King's Astronomical Observator.
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1 year ago, in 1959:
Pioneer 4 flies by the Moon, but doesn't come close enough to the Moon to trigger its camera.
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69 years ago, in 1891:
307 Nike, a minor planet in the asteroid belt, is discovered by Auguste Charlois at the Nice Observatory.
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2 years ago, in 1958:
Explorer 2 is launched, but a failure in the rocket's fourth stage prevents it from reaching orbit.
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145 years ago, in 1815:
Heinrich Wilhelm Olbers of Germany discovers a periodic comet, 13P/Olbers.
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1 year ago, in 1959:
Last contact is made with Pioneer 4.
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102 years ago, in 1858:
Friedrich August Theodor Winnecke 'rediscovers' comet 7P/Pons–Winnecke.
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26 years ago, in 1934:
Yuri Gagarin is born in Klushino, Russian SFSR, Soviet Union.
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This year:
Able 6 (Pioneer 5) is launched for a heliocentric orbit between Earth and Venus, and confirms the interplanetary magnetic field.
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179 years ago, in 1781:
William Herschel discovers the planet Uranus; first planet discovered through a telescope.
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81 years ago, in 1879:
Albert Einstein is born in Ulm, Kingdom of Württemberg, in the German Empire.
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34 years ago, in 1926:
Robert H. Goddard launches the first ever liquid fueled rocket.
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108 years ago, in 1852:
16 Psyche, one of the ten most massive objects in the asteroid belt, is discovered by the Italian astronomer Annibale de Gasparis from Naples.
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61 years ago, in 1899:
Phoebe, a moon of Saturn, is the first moon to be discovered photographically (William Pickering).
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2 years ago, in 1958:
Vanguard 1, the first solar powered satellite, is launched and reaches orbit.
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179 years ago, in 1781:
M96 (NGC 3368), an intermediate spiral galaxy in the constellation Leo, is discovered by Pierre Méchain.
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276 years ago, in 1684:
Giovanni Cassini discovers one of Saturn's moons, Tethys.
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120 years ago, in 1840:
John William Draper takes the first successful photograph (Daguerreotype process) of the Moon.
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18 years ago, in 1942:
5535 Annefrank, a minor planet in the inner asteroid belt, is discovered by German astronomer Karl Reinmuth at the Heidelberg Observatory.
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179 years ago, in 1781:
M105 (NGC 3379), an elliptical galaxy in the constellation Leo, is discovered by Pierre Méchain.
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305 years ago, in 1655:
Christiaan Huygens discovers Saturn's largest moon, Titan.
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149 years ago, in 1811:
The French astronomer Honore Flaugergues discovers the Great Comet of 1811 (C/1811 F1), visible to the naked eye for about 260 days.
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2 years ago, in 1958:
Explorer 3 is launched, and confirms the Van Allen Belts.
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158 years ago, in 1802:
Heinrich Wilhelm Olbers of Germany discovers the third largest asteroid, Pallas.
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153 years ago, in 1807:
Heinrich Wilhelm Olbers of Germany discovers the second largest asteroid, Vesta.
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24 years ago, in 1936:
Over 10,000 people watch the 200-inch mirror blank for the Hale Telescope passing by rail through Indianapolis.
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15 years ago, in 1945:
The last day of V-1 rocket bomb attacks on England occurs, only to be soon replaced by the V-2.
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