Astronomy is one of humanity’s oldest sciences. Its basic activity is to study the sky and learn about what we see in the universe. Observational astronomy is an activity that amateur observers enjoy as a hobby and pastime and was the first type of astronomy humans did. There are millions of people in the world who stargaze regularly from there backyard or personal observatories. Most aren’t necessarily trained in the science, but simply love to watch the stars. Others are trained but do not make their living at doing the science of astronomy.
On the professional research side, there are more than 11,000 astronomers who are trained to do in depth studies of the stars and galaxies. From them and their work, we get our basic understanding of the universe. It’s such an interesting topic and raises many astronomy related questions in people’s minds about the cosmos itself, how it got started, what’s out there, and how we explore it.