Superstring Theory

In physics and astronomy, a theory that attempts to link the four fundamental forces. It postulates that each force emerged separately during the expansion of the very early universe from the Big Bang. It also postulates viewing matter as tiny vibrating strings instead of particles within a universe of more than the currently known four dimensions. Continuing research pursues a model based on a ten-dimensional universe. At the Big Bang, the ten dimensions split into two components, with four dimensions expanded into the current observable universe while the other six dimensions contracted to a point in space.