Buzz Aldrin's salute to 'those who gave their lives for our freedom' is out of this world [photo]

It is certainly among the best:

My proudest moment – when I saluted the flag on the moon. Today I salute those who gave their lives for our freedom. pic.twitter.com/HxkSreDN9z

— Buzz Aldrin (@TheRealBuzz) May 25, 2015

Fantastic tribute.