The Amazon product description tells you what you're getting, so there's no need to elaborate on what this is.
So instead, let's point to how economical a writer Vaughan is, and how carefully he shapes his plots, so his stories are like little depth charges that deliver far more than writers who'd use two or three times the word count to tell the same tale.
All three stories here are gems, but I particularly cared for "Moon Flu". I thought I'd spotted the twist in the tail as I read it, but in fact there are two, and while I'd correctly spotted one of them, it was the secondary one - I hadn't anticipated the big one at all, and it's a doozy.
Highly recommended, and not only if you're a child of the Apollo era, though that will probably add layers of resonance. Disclosure: as noted in another review, I know the author, but if anything that makes me try harder to be even-handed in these comments. Come on Vaughan, you're not trying hard enough to make me critical!