Apollo 17 commander Eugene Cernan holds the lower corner of an American flag during the mission’s first Extravehicular activity on the moon in 1972.
Apollo 17 commander Eugene Cernan holds the lower corner of an American flag during the mission’s first Extravehicular activity on the moon in 1972. Harrison J. "Jack" Schmitt AP
Apollo 17 commander Eugene Cernan holds the lower corner of an American flag during the mission’s first Extravehicular activity on the moon in 1972. Harrison J. "Jack" Schmitt AP

Let us sail the heavens again

January 21, 2017 3:00 PM