This is one of the more famous images of the Earth from the Apollo program, taken by the Apollo 8 astronauts as they became the first humans to circumnavigate the Moon.

• 这是1968年12月22日阿波罗8号环绕月球飞行时拍摄的地球从月亮的地平线升起。这样看起来地球很孤独的样子。