Imagine a universe where the vast majority of matter is like an invisible ghost, permeating space yet remaining completely ...

Caltech theoretical physicist Sean Carroll explores what existed before the Big Bang in his new book, "The Big Picture." Produced by Delano Samuels and Jessica Orwig Follow BI Video: On Twitter ...

Big Bang theory, in science, is the idea that all the matter and energy of the Universe was once crushed into a single point, a single infinitesimal granule of everything. The Big Bang itself is ...

People talk about the universe starting with a Big Bang, but how could we possibly know anything about an event that happened billions of years ago – before our planet was even formed?