Cosmology in medieval Islam was the study of how the universe was created and how it works. People in Medieval Islam thought that God had created the universe, which included all the stars, planets and other things that could be seen in the sky. They believed that God had made the universe from one point in time and that it would always exist. Medieval Islamic cosmology was focused on understanding the place of humans in relation to the universe, and explaining why things happened the way they did. To do this, scientists and philosophers studied physics, astronomy, and mathematics. They used these tools to try to explain the relationship between the stars, planets, and other movements in the sky, and understand how these movements affected things on Earth.