It's been 3974 days
since New Horizons'
closest approach
to Pluto on
July 14, 2015.
It's been 2707 days
since New Horizons'
closest approach
to 2014 MU69 on
January 1, 2019.
Questions? Comments?
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Current Date
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72nd day of Spring
21 days until Summer
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28 years ago, in 1915:
Albert Einstein's general theory of relativity is published.
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39 years ago, in 1904:
At the Lick Observatory, Charles D. Perrine discovers Himalia, the largest irregular satellite of Jupiter.
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153 years ago, in 1790:
William Herschel discovers NGC 12, a spiral galaxy in the Pisces constellation.
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152 years ago, in 1791:
Caroline Herschel discovers her fifth comet, Comet C/1791 X1 (Herschel).
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40 years ago, in 1903:
The Wright brothers make the first powered flight.
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160 years ago, in 1783:
Thinking it to be a globular cluster, William Herschel discovers the spiral galaxy NGC 2775 in the constellation of Cancer.
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43 years ago, in 1900:
Michel Giacobini discovers comet Giacobini–Zinner, which was later a target for the ICE spacecraft.
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155 years ago, in 1788:
Caroline Herschel discovers her second comet, Comet 35P/Herschel-Rigollet.
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975 years ago, in 968:
The first clear description of the corona seen during a total eclipse is given by a chronicler in Constantinople.
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271 years ago, in 1672:
Giovanni Cassini discovers one of Saturn's moons, Rhea.
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