Quantum Gravity: Where Space, Time, and the Quantum World Collide
Image: Wikimedia Commons Quantum gravity is the term physicists use for one of the deepest unsolved mysteries in physics since the early 20th century. It explains how gravity fits into the quantum world. Such a theory is expected to provide a complete description of our universe, but so far it presents not only mathematical difficulties, but also challenges in its philosophical implications. Modern physics seeks to describe the universe using two powerful frameworks. Quantum mechanics ...