Throughout history, each and every culture has questioned the cosmos, if not been amazed or even influenced by its beauty. But what makes you interested? For me, it was the first time I had ever looked through a telescope. It made me realize that Saturn was real and not just an image from a colouring book or cartoon. It was there.  Perhaps you like astronomy/astrophysics/Space/Cosmology because you, personally, are a way of the Universe experiencing itself, or that we are all made of starstuff, as Carl Sagan so elegantly put it