It's been 3966 days
since New Horizons'
closest approach
to Pluto on
July 14, 2015.
It's been 2699 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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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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9 years ago, in 1950:
The Soviet R-2, with twice the range of the R-1, makes its first flight.
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1 year ago, in 1958:
The NASA agency becomes operational.
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17 years ago, in 1942:
The first V-2 rocket is launched from Peenemunde, Germany, and reaches 85 km (52 mi).
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2 years ago, in 1957:
The Soviets launch Sputnik 1, the world's first artificial satellite.
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This year:
Luna 3 is launched to the Moon.
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1 year ago, in 1958:
Explorer 4's high-power transmitter ceases sending signals.
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This year:
Explorer 6 makes its final transmission.
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1 year ago, in 1958:
Studies and plans of the U.S. manned satellite project (in what was to become Project Mercury) is officially approved by NASA.
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This year:
Luna 3 takes the first photos of the far side of the Moon.
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113 years ago, in 1846:
William Lassell discovers Neptune's largest moon, Triton.
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11 years ago, in 1948:
The R-1 (a Soviet built copy of the German V-2) makes its first successful flight.
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1 year ago, in 1958:
Intended for a lunar impact, the Soviets launch Luna E-1 No.2 (Luna 1958B), but the rocket disintegrates 102 seconds after launch.
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1 year ago, in 1958:
Pioneer 1 is the first spacecraft to be launched by NASA, but fails to reach the Moon.
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1 year ago, in 1958:
Pioneer 1 burns up after reentering Earth's atmosphere.
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This year:
An anti-satellite missile test of the Bold Orion rocket uses Explorer 6 as a target, and successfully passes within 6.4 kilometers (4 mi) of it.
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This year:
Explorer 7 is launched, beginning the start of satellite studies of Earth's climate.
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12 years ago, in 1947:
Charles "Chuck" Yeager breaks the sound barrier in the XS-1.
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53 years ago, in 1906:
617 Patroclus, a Jupiter trojan asteroid, is discovered by German astronomer August Kopff at Heidelberg Observatory.
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2 years ago, in 1957:
The groundbreaking and dedication of the Green Bank radio astronomy site takes place.
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35 years ago, in 1924:
1036 Ganymed, the largest near-Earth asteroid, is discovered by Walter Baade.
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This year:
Explorer 4 burns up in the atmosphere.
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108 years ago, in 1851:
William Lassell discovers two moon of Uranus, Ariel and Umbriel.
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13 years ago, in 1946:
The first photo of Earth from space is taken by U.S. scientists with a V-2 rocket.
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2 years ago, in 1957:
The Boeing X-20 Dyna-Soar program begins, to be cancelled 6 years (and US$660 million) later.
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288 years ago, in 1671:
Giovanni Cassini discovers one of Saturn's moons, Iapetus.
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2 years ago, in 1957:
Sputnik 1 ceases sending signals after 22 days when the transmitter batteries run out.
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39 years ago, in 1920:
944 Hidalgo, the first member of the centaurs (though not realized as distinct until 1977) , is discovered by German astronomer Walter Baade.
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