Challenger Carries Covers to Space
On August 30, 1983, the space shuttle Challenger blasted off on its third mission to space. The shuttle carried special cargo – commemorative covers bearing the new Express Mail Next Day Service stamp.
Space Exploration
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Chandra X-Ray Observatory
On July 23, 1999, NASA launched the Chandra X-Ray Observatory to observe x-rays from outside the Earth’s radiation field. The mission was originally intended to last just five years, but Chandra is still orbiting the Earth and making discoveries today, more than 20 years after launch.
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Apollo 16 Launches
Apollo 16 launched from the Kennedy Space Center in Florida at 12:54 p.m. on April 16, 1972. It was the 10th crewed Apollo mission and the fifth and second to last to land on the Moon.
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Birth of Melvin Calvin
Biochemist Melvin Calvin was born on April 8, 1911, in St. Paul, Minnesota. He earned the 1961 Nobel Prize for Chemistry for his discover of the Calvin cycle – the conversion of carbon dioxide into organic molecules during photosynthesis.
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Goddard’s First Liquid-Fueled Rocket
On March 16, 1926, Robert H. Goddard launched his first liquid-fueled rocket in Auburn, Massachusetts. Though his work went largely unrecognized during his lifetime, today he’s known as the father modern rocketry.
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U.S. Lands First Men On The Moon
On July 20, 1969, the US effectively won the Space Race when Neil Armstrong and Buzz Aldrin landed the Eagle lunar module on the Moon’s surface.
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Launch of Pioneer 11
On April 5, 1973 (some sources cite April 6 UTC (Coordinated Universal Time), the Pioneer 11 space probe launched from Cape Canaveral, Florida.
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First Light of the Hale Telescope
On January 26, 1949, the Hale Telescope at Palomar Observatory first saw light. Still in use today, the Hale telescope is one of the world’s largest optical telescopes.
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Launch of Sputnik I
On October 4, 1957, the Soviet Union launched Sputnik I, the first man-made object in space, which sparked the start of the Space Race with the United States.
