Astronomy has long been a favorite subject of mine, a passion for the planets that dates as far back to when I was 7 and wished I could ice-skate on Saturn’s rings. While I now know that’s just not possible (at least not in my lifetime, anyway), I enjoy sharing this memory with my daughters. (The little one laughs, while the older one simply rolls her eyes.) Just earlier this week, while at the bus stop, my 7-year-old told me that Pluto was no longer considered a planet, and we got to talking about outer space and the solar system. Little did I know, a few days later, my preschooler would point out a solar system model suspended from the ceiling at her play group [&hellip