It's been 3998 days
since New Horizons' closest approach to Pluto on July 14, 2015.
It's been 2731 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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2nd day of Summer
91 days until Fall
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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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70 years ago, in 1843:
The Great Comet of 1843 is first observed.
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This year:
Several hundred meteors are seen streaming across the sky from Saskatchewan to Bermuda.
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113 years ago, in 1800:
While testing filters for observing the Sun, William Herschel discovers infrared radiation in sunlight.
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349 years ago, in 1564:
Galileo Galilei is born in Pisa, Duchy of Florence, Italy.
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68 years ago, in 1845:
The 72-inch Rosse (Leviathan of Parsonstown) Telescope sees "first light".
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440 years ago, in 1473:
Nicolaus Copernicus is born in Thorn, Royal Prussia, Kingdom of Poland.
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126 years ago, in 1787:
William Herschel's 40-foot (Great Forty-Foot) Telescope sees "first light".
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297 years ago, in 1616:
Galileo Galilei is ordered by the Inquisition to abandon the Copernican theories.
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130 years ago, in 1783:
NGC 2360 (Caroline's Cluster), an open cluster in the constellation Canis Major, is discovered by Caroline Herschel.
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70 years ago, in 1843:
The Great Comet of 1843 makes a very close perihelion of less than 515,000 miles (830,000 km).
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357 years ago, in 1556:
The German astronomer Joachim Heller discovers the Great Comet of 1556 (C/1556 D1).
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