Eric Wilner: upcoming events

We know well what life can tell:
If you would not perish, then grow!
And today our fragile flesh and steel
Have laid their hands on a vaster wheel,
With all of the stars to know

That the Eagle has landed;
Tell your children when.
Time won't drive us down to dust again.

- Leslie Fish, "Hope Eyrie"

Apollo 11 landed 20 July 1969.
Apollo 17 returned to Earth 19 December 1972, and no one's been back since.
History: http://nssdc.gsfc.nasa.gov/planetary/lunar/apollo.html