Cosmological expansion is a recent breakthrough in our understanding of the universe. It began with the observation that distant galaxies (each containing billions to trillions of stars) found in every direction from our own Milky Way are ...
Cosmology :: Unraveling The History of the Universe
Cosmology is a scientific discipline combining astronomy and physics in an attempt to understand the universe as a whole, dealing particularly with the origin, nature, and evolution of the universe. Cosmologists deal with ideas such as String ...