I was tucking Clara in (our) bed and giving her, her nightly arm rub, when she casually asks me "mom, if the world is round then are there people upside down?". "Good question" I say, trying to stall her while quickly thinking about an age appropriate, never mind correct answer. I muttered something about gravity, which didn't completely satisfy her, so here I am about to google yet another question.
I told her I would get back to her, just like I have to get back to Sam after he asked me why the sun was following him in the car today.
(*poster of the solar system is from one of my favourite stores, Land of Nod, and also resides on Sam's wall above his bed)