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Click to open image viewer. The unmanned Apollo 6 Command Module (CM 020) was launched from Kennedy Space Center on April 4, 1968 and recovered in the Pacific Ocean 10 hours later. The mission was the ...
Marking time has long been a human obsession - from the first rudimentary cave markings to wall planners, desk diaries and computerized charts, calendars have always been with us. Now scientists at ...
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