Which astronomer proposed the theory of the expanding universe?
The Beginning and End of the Universe while there are "oodles of graphs and stats," which he explains, "with seemingly effortless lucidity," regular viewers of "Horizon", "might be immune to the barrage of cosmic stats." The Beginning and End of the Universe The Beginning and End of the Universe is a two-part British television series outlining the theory of the beginning of the universe and the theories about its ending. This episode, exploring theories of how the universe came into being, outlines the realisation of Edwin Hubble that the universe is expanding, and the discovery of the residual radiation that gave weight to the Big Bang theory.
Future of an expanding universe Future of an expanding universe Observations suggest that the expansion of the universe will continue forever. If so, then a popular theory is that the universe will cool as it expands, eventually becoming too cold to sustain life. For this reason, this future scenario once popularly called "heat death" is now known as the Big Chill or Big Freeze. If dark energy—represented by the cosmological constant, a "constant" energy density filling space homogeneously, or scalar fields, such as quintessence or moduli, "dynamic" quantities whose energy density can vary in time and space—accelerates the expansion of the universe, then the space