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I guess they'd do it by looking at when the term "big bang" started showing up in papers. Or, maybe by looking at TV Guide.
(Hint: I don't think "theory" means what you think it means.)
I'll answer the question you were probably trying to ask also:
A variety of ways that are probably too complicated to explain in detail here, but involve looking at redshifts of distant galaxies and the cosmic microwave background.
What else can I help you with?
What do scientists think started the universe?
The big bang or a wormhole
Event that marks the beginning of the universe?
The event that marks the beginning of the universe is the Big Bang. This was a cosmic event that occurred about 13.8 billion years ago, creating the universe as we know it today. The Big Bang theory is widely accepted by scientists as the most plausible explanation for the origin of the universe.
What do scientists call the event that started the universe?
Scientists refer to the event that started the universe as the Big Bang. This is a cosmological model that suggests the universe began as a very hot, dense state and has been expanding and cooling ever since.
What sentence can you make using the word Big bang theory?
The Big Bang Theory is widely considered by scientists and theologians as the way in which the universe started. Even the Pope accepts it.
Do scientists believe in big bang theory?
To the same extent that they believe gravity exists away from our planet, and for the same reason: scientists observe the predictions made by both ideas. Planets move around our Sun just as gravity predicts they will, and our Universe is exactly as predicted by Big Bang Cosmology.
When do scientists think the Big Bang theory happened?
The Big Bang theory was proposed (happened) in the middle of the 20th Century.The theory, and the work exploring it, suggest that the Big Bang happened about 13.7 billion years ago.
What do scientists think have happened to most ancient species?
The big bang
What do most scientists believe existed before the incident known as big bang?
Most scientists believe that an infinite dense singularity existed before the incident known as the Big Bang.
When do scientists believe the big bang took place?
the scientists believe the big bang took place is northeast
What were the affects after the big bang?
Everything that ever happened - or at least, everything we know of - happened after the Big Bang, and was, in a way, affected by the Big Bang.
What are some of the most intriguing big bang questions that scientists are currently exploring?
Some of the most intriguing questions that scientists are currently exploring about the Big Bang include: What happened before the Big Bang? What caused the Big Bang to occur? What is the nature of dark matter and dark energy, which make up most of the universe? How did the universe evolve and expand after the Big Bang? These questions continue to drive research and exploration in the field of cosmology.
What effects were there after the big bang?
Everything we know of happened after the Big Bang.
When the big bang happened were humans alive?
No. The big bang was before the dinos.
Are stars and planets formed after the Big Bang?
Everything happened after the big bang.
When did Big Bang Mini happen?
Big Bang Mini happened in 2009.
When did Big Bang Beat happen?
Big Bang Beat happened in 2007.
Scientists extrapolate backwards in time to derive?
the big bang theory
