I was deeply saddened by the passing of my friend John Glenn last Thursday. All of us have lost a space pioneer, a world icon and a visionary space exploration advocate.
Democracy Dies in Darkness
Buzz Aldrin: John Glenn was a hero. We owe it to him to keep exploring space.
We've lost an icon and a pioneer. But we can follow his example all the way to Mars.
By Buzz Aldrin
December 15, 2016 at 6:00 a.m. EST