It was early morning on Chol Hamoed Pesach—the in-between days of Passover that carry both the freedom of the holiday and the calm of the everyday. As I woke, I made a deliberate choice to look up.

You’ve probably heard of morning glories the flower, but did you know there are clouds that bear the same name? If not, you’re in for a real treat! At least, if you live in Australia, near the Gulf of ...