Astrophysics is a subfield of space science that aims to comprehend the universe and our place in it by applying the rules of physics and chemistry. Astrophysics develops physical theories for the universe’s small-to-medium-sized structures and objects. The area studies the formation, evolution, and demise of planets, stars, galaxies, nebulae, and other cosmic phenomena. Though there can be some blurring between these fields, astronomy and cosmology are its two sibling sciences.