Mars ain’t the kind of place to raise your kids
In fact it’s cold as hell
And there’s no one there to raise them if you did

– Elton John/Bernie Taupin, “Rocket Man”

I was listening to this song on my way home from work this evening, when those lyrics struck me as somewhat peculiar. You might be able to guess that it’s the cold as hell part in particular that roused my interest. How can something be as cold as hell?

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