"The Earth was small, light blue, and so touchingly alone, our home that must be defended like a holy relic. The Earth was absolutely round. I believe I never knew what the word round meant until I saw Earth from space." -- cosmonaut Aleksei Leonov (b. 1934-05-30), first human to enjoy EVA (1965-03-18 -- the first American to do so did it a few months later)