Mars is a naturally curious kid and, like his Dad, he's interested in astronomy and what goes on in the sky. We often find we are on the receiving end of some pretty complicated questions about the nature of the universe which can usually be divided into three categories.
I take the easy ones - things like why do we sometimes see the moon during the day, and why does it get bigger and smaller?
Supernerd takes the hard ones - how do the rockets get to the moon, why do they need so much fuel, why do people jump on the moon? (I could probably field some of these too, but Supernerd knows all about rockets and moon landings, so we have a kind of unspoken agreement that this is his area.)
But the really tricky ones go to Grandpa - things like when there is a rainbow how do the colours know where they should be? (I just couldn't face trying to explain refraction without a prism!)
But recently I found that Mars was the expert and I the curious student, as he described to me the way that the sun goes around to the other side of the earth, taking tomorrow with it, and when we see the sun again it brings us tomorrow.
Just amazing.
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