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The Big Bang theory posits that the universe began as a singularity that rapidly expanded about 13.8 billion years ago. This theory is supported by evidence such as the cosmic microwave background radiation and the redshift of galaxies moving away from each other. While the exact cause of the Big Bang is still unknown, current scientific understanding suggests that it was a natural event that initiated the formation of the universe as we know it.
Jesuit priest Georges LeMaitre developed Big Bang Cosmology (BBC) when he noted that the equations for general relativity allowed for an expanding universe or a contracting universe, but not for the infinitely steady universe that Einstein believed in. He also suggested that the red shift seen for distant nebulae (which later turned out to be galaxies) could be explained by such an expansion. When Edwin Hubble showed that all distant galaxies have a red shift exactly as predicted by BBC, many scientists accepted LeMaitre's ideas.
Scientists now accept BBC as true for the same reason they accept gravity between planets: the idea matches observations, and alternatives to that idea fail to do so. BBC perfectly explains several undeniable observations about our Universe, and other cosmologies (such as Steady State) either predict we shouldn't observe them or fail to provide any explanation for them.
Plain and simple, BBC "wins," all other ideas fail.
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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.
When do scientists think the Big Bang theory happened?
Scientists estimate that the Big Bang occurred approximately 13.8 billion years ago based on observations of the cosmic microwave background radiation. This radiation is considered the afterglow of the Big Bang and provides valuable information about the early universe.
How old was the universe when the big bang thory happened?
Events in the Universe are often dated from the Big Bang. But the fact is, NOBODY KNOWS what (if anything) happened before the Big Bang. The Big Bang MAY have been the start of time itself; but it is possible that the Universe existed (in some form) forever in the past.
What happened first big bang or supernova?
The Big Bang happened first. It is the beginning of the Universe as we know it - we don't know what happened before that.During the Big Bang, hydrogen and helium were formed; other elements were created later, through nuclear fusion - and some of those were ejected in supernova explosions.
What would've happened if the big bang never took place?
If the Big Bang never took place, the universe as we know it would not exist. The universe began as a singularity and expanded rapidly from that point. Without this event, there would be no galaxies, stars, planets, or life as we know it.
What do scientists think have happened to most ancient species?
The big bang
Where is Big Bang now?
well that's depends some think there was no big bang and some do if you do it has already happened and i may not happen again :)
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 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 Beat happen?
Big Bang Beat happened in 2007.
When did Big Bang Mini happen?
Big Bang Mini happened in 2009.
When do scientists think the Big Bang theory happened?
Scientists estimate that the Big Bang occurred approximately 13.8 billion years ago based on observations of the cosmic microwave background radiation. This radiation is considered the afterglow of the Big Bang and provides valuable information about the early universe.
Where does big bang took place?
everything happened in the same place. there is the big bang. to the northeast is also this big bang. so everything was in one place and the big bang was in the only place there was a place.
How old was the universe when the big bang thory happened?
Events in the Universe are often dated from the Big Bang. But the fact is, NOBODY KNOWS what (if anything) happened before the Big Bang. The Big Bang MAY have been the start of time itself; but it is possible that the Universe existed (in some form) forever in the past.
When and how do sciensits think the universe was formed?
it happened about 13.7 billion years ago by the big bang when everything started expanding
