Earth's relationship status is set to “Complicated.” Forty years ago today, man left the moon's surface for the last time.
Dear Moon,
Source: en.wikipedia.org
I know we haven't visited in a while.
Source: en.wikipedia.org
OK, a long while. In fact, we last left you 40 years ago today when Apollo 17 lifted off on Dec. 14, 1972.
Source: en.wikipedia.org
But we had to go home.
Source: nasa.gov