via.
This is the great day. This is the greatest event in all the history of the human race, up to this time. That is — today is New Year’s Day of the Year One. If we don’t change the calendar, historians will do so. The human race — this is our change, our puberty rite, bar mitzvah, confirmation, from the change of our infancy into adulthood for the human race.
And we’re going to go on out, not only to the Moon, to the stars; we’re going to spread. I don’t know that the United States is going to do it; I hope so. I have — I’m an American myself; I want it to be done by us. But in any case, the human race is going to do it, it’s utterly inevitable: we’re going to spread through the entire universe.
(Robert Heinlein. Interview with Walter Cronkite. CBS News. July 20, 1969.)

Is it gauche to use a Clarke cover in a Heinlein entry?
Happy forty-second birthday to the Apollo 11 mission (Hey, 42!). Which was apparently for nothing since we’re not going to colonize it even at all. Not under the aegis of organized government-funded scientific think-tanks, at any rate, which it seems are going the way of the Betamax and Karen Carpenter*. Privatizing space travel/exploration is about as dicey an idea as any I’ve heard in this life. There will be a Wal-Mart on the moon before a fucking hospital. Depend on it.
(I’m just bitter because I have always wanted to live on the moon. Sorry. This is not a joke: my ultimate fantasy would be to make love on the back lawn of my terra-formed moon house — by EARTHLIGHT. Picture it, you look up and the planes of your lover’s face are illuminated by light from Earth. HOW AMAZING WOULD THAT BE? Crazy amazing. Crazy. Plus outside sex.)
*Oh, my god, why would you even make that joke? Because I am a terrible person.