Title: What does the universe made of? Composition: The composition of the universe is a complex and fascinating topic that has fascinated scientists, philosophers, and cosmologists for centuries. In this quest to explore what the universe is made of, we will delve into the fundamental building blocks of the universe, leveraging our current understanding of the universe as of my knowledge in September 2021. The universe as we know it is a vast expanse filled with an incredible variety of objects, from galaxies and stars to planets and asteroids. But at the most fundamental level, what lies beneath the surface? To answer this question, we need to look at the components of matter and the forces that govern their interactions. Elementary particles: At the center of matter are elementary particles. These are the smallest units of matter and are the true building blocks of the universe. There are his two main categories of elementary particles: fermions and bosons. Fermions form the material itself, while bosons play a role in transmitting force. Ferimons: There are two types of fermions: quarks and leptons. Quarks are the building blocks of protons and neutrons, which form the nucleus of an atom. Quark has six