The more I think about the idea creating a Space Force — the less I think about it … if you know what I mean.

Donald Trump wants to create a new military branch devoted exclusively to fighting enemies in outer space.

As I ponder it, I think: Huh? Doesn’t NASA have that responsibility already? And doesn’t the U.S. Air Force have a Space Command that devotes its considerable intellectual power, know-how and technology to defending us from attacks that might come from beyond our atmosphere?

We’ve got the North American Aerospace Defense Command — a joint U.S.-Canadian operation. There’s also the Strategic Air Command. The Navy has its own capabilities as well.

Yet the president wants to commit $8 billion more in defense spending to create a Space Force? Where’s he going to get the money? Don’t anyone even think of suggesting he should take the funds from domestic programs the Trump administration wants to gut anyway.

The notion of a Space Force has given late-night comics plenty of grist for their joke writers. I won’t go there, although I was amused to hear Vice President Mike Pence extend “greetings from the president of the United States” in a tone of voice suggesting he was talking to a roomful of extraterrestrials.