The Origin of the Universe

THEORIES ON THE ORIGIN OF THE UNIVERSE STATIC UNIVERSE THEORY The universe is ______. It is spatially bound and uniform. (static- neither expanding nor contracting) It was first mentioned by Sir Isaac Newton in his book Principia in 1687. (matter is uniformly distributed) The model of this theory was proposed by Albert Einstein in 1917.

The universe started with a small and very hot and dense ______ which constantly expands and cools over the next 13.8 billion years to the cosmos that we know today. (Singularity - contains all of the mass and space-time of the universe) It was proposed by Lemaitre in 1927 who is a Belgian astrophysicist and Priest.

It states that the universe is always expanding but maintaining a constant average density. Matter being continuously created to form new stars and galaxies at the same rate that old ones become unobservable as a consequence of their increasing distance.

The model of the ______ theory was proposed by Albert Einstein in 1917.

The ______ states that the universe is always expanding but maintaining a constant average density.

Sir Isaac Newton first mentioned the static universe theory in his book ______ in 1687.

The ______ theory was proposed by Albert Einstein in 1917.

The universe started with a small and very hot and dense singularity which constantly ______ and cools over the next 13.8 billion years to the cosmos that we know today.

The steady state theory states that the universe is always expanding but maintaining a constant ______ density.

Matter being continuously created to form new stars and galaxies at the same rate that old ones become unobservable as a consequence of their increasing ______.