Yes, I am the last man to have walked on the moon, and that's a very dubious and disappointing honor. It's been far too long.
Gene CernanPrepare for the unknown, unexpected and inconceivable . . . after 50 years of flying I'm still learning every time I fly.
Gene CernanChemical propulsion is obsolete to go anywhere other than the moon. Three days - that's acceptable. But for Mars, we need propulsion technologies to get us there in, say, 60 days - then spend whatever length of time we want to spend and return when we want to come home.
Gene Cernan