The study of celestial occurrences and objects is the focus of astronomy, a branch of natural science.
♾️ Anchient hobby: Humans started doing it probably 2000+ years ago
📘 Newbies can read: Astronomy
Online course for beginners: Backyard Astronomy
You want to find a hobby, but you can't think of any. This tool will help you come up with ideas for things to do as a hobby.