In 3rd grade, I wanted to be an astronomer. I corrected a substitute teacher when she said that the sun doesn't move (since a book had told me it does in fact revolve around the center of the galaxy). In 5th (or maybe 6th?) grade, when we had multiple periods instead of a single teacher, the science teacher was big on space as well. We had a night that year where parents and anyone else interested brought telescopes to the field behind the school and stargazed. My parents actually bought a fairly nice telescope - that no longer functions, unfortunately. I've always enjoyed the night sky and miss it here in the light-polluted city. I wouldn't say I'm an active amateur astronomer, but I would love to be if I had the time, money, and lived somewhere the view was better.
I'm also pretty interested in anything space-related, from theoretical physics and outright sci-fi to the Mars missions and those poor sobs seriously talking about mining asteroids. Usually I'm more about the fantastic, which includes both fiction and the actual crazy exoplanets we keep finding.