The first humans to catch a glimpse of the Earth rising over the moon nearly missed seeing it at all, let alone capturing the snapshot that became one of the most iconic photos of the 20th century.

Humanity's first look at Earth from the moon didn't come until Aug. 23, 1966, when this grainy, black-and-white image showed our planet as a crescent above the lunar horizon, appearing to rise as the ...

The year 1968 was by any measure a bad one for America. Two of our nation's leaders were assassinated—Senator Robert Kennedy and Reverend Martin Luther King Jr. Following King's murder, riots swept ...