Hubble's red shift observation.
The Big Bang is a theory in cosmology that explains the origin and evolution of the universe, supported by a significant amount of observational evidence. It is not a hypothesis, as a hypothesis is an initial explanation to be tested and either supported or rejected based on evidence.
The Big Bang hypothesis is one of the theories that try to explain the origin of the creation of the universe. It's the current most accepted theory by scientists and astronomers. It asserts the universe and all the planets and systems it contains were formed after an immense explosion of matter and energy out of an original point.
The Big Crunch hypothesis.
the big bang
Our concept of the "big bang" has no explanation about how or why, but our hypothesis is that there was NOTHING before the Big Bang created the universe.
The Big Bang Theory - 2007 The Big Bran Hypothesis 1-2 is rated/received certificates of: Argentina:13
The Big Bang is a theory that discusses the origin of the universe (from a single point source of incredible density and energy) while the Nebular Hypothesis is a theory that discusses the origins of stars and their planetary systems (through the accretion of interstellar gas).
universe
The Big Bang Theory - 2007 The Infestation Hypothesis 5-2 is rated/received certificates of: Netherlands:AL
because it explains about universe
Fred Hoyle was a proponent of the steady-state theory of the universe and was critical of the Big Bang theory. He famously likened the Big Bang theory to a "Big Bang" creation event and continued to advocate for his steady-state theory even after evidence supporting the Big Bang theory emerged.
The Big Bang Theory - 2007 The Alien Parasite Hypothesis 4-10 is rated/received certificates of: Netherlands:AL