Did you ever wonder why some people become astronomers? I asked random astronomers at last month's AAS meeting, and in my latest
365DOA podcast, you can find out what each said-- and how each explained their research in 30 seconds or less. For the big picture, the stories of why ordinary, sane people become astronomers, it turns out we get bit by the astronomy bug early.
Either in elementary school, we've already decided, or in high school, we get inspired. By the time people hit college, the ones who want to be career astronomers have already decided that's their path.