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The idea that everything in the universe came from a single dense ball 10 to 20 billion years ago has been named?
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∙ 14y ago
The Big Bang Theory
Wiki User
∙ 14y ago
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How old is a yellow star?
It can be as old as 10 billion years. Then it increases to the size of a giant and supernova. After that it turns into a small dense white dwarf.
Approximately how long ago is the big bang thought to have occurred?
The question is fun, and it would be fun to calculate. But the answer would have no meaning at all, because the question suggests a level of precision that the answer can't possibly have. We would have to be able to accurately identify the time of the event to at least the nearest second, which is impossible. Also, any estimate of the number of seconds would not be reported to that degree of accuracy, so converting back to the units you started with would be called for. Not only can we get no closer than billions of years, we are not even certain beyond doubt that it happened. The question is a little like asking 'How many cubic centimeters of water are there on Earth?' We cannot know the answer to the level of accuracy that 'cubic centimeter' suggests. I think about 473,040,000,000,000,000 seconds. Multiply 15 billion years by 365, then 24, then 60, then 60 again and you'll have it.
What theory was proposed by Gamow and Lemaitre?
Abbe Lemaitre originally proposed that the universe began from a singular point. George Gamow expounded on the theory by proposing that the universe was extremely hot and dense at the time, and gave a possible explanation for the formation of elements from the point of the Big Bang.
Does moon europa have gravity?
Yes. Everything has gravity. Larger and denser objects have more gravity than smaller objects that are less dense.
What is one of the primary unaswered questions about the origin of the universe?
It was what came before the big bang, and the big bang theory states that the universe started as a dense nucleus of matter: a huge amount of matter concentrated in a tiny spot. This is the conclusion of equations and evidences that prove that the universe has been and continuous to expand: since it has been expanding, there was a moment when it was as small and dense as it is possible . So, the expansion is the result of violent explosion. The time during which the expansion has been happening (this is how long ago the big bang occurred) has been estimated thanks to the observation of the speed of recession of the galaxies, but nothing can be told about what came before the big bang occurred .
When was hydrogen made?
When the universe was dense enough and hot enough for fusion during the Big Bang some 13 billion years ago.
When and how did the universe begin?
The Universe is generally believed to have started very small, very hot, and very dense; from there, it expanded to its current size (and it continues expanding). This hot and dense beginning, generally known as the Big Bang, was about 13.8 billion years ago.
How is the origin of universe explained?
There is a lot of evidence that some 13.8 billion years ago, the Universe was in an extremely dense and hot state, commonly called the "Big Bang", and that since then, it has been expanding.It is not currently known what happened before that.
What actually formed the universe?
The Big Bang BIG BANG was formed in 13.8 billion years ago when the universe began as a tiny, dense, fireball that exploded. Most astronomers use the Big Bang theory to explain how the universe began.
Complete the sentences by matching the phrases below?
Astronomers are able to determine the speed at which certain redshift stars move using: The doppler effect Radiotelescopes reveal that space is full of: Cosmic microwave background radiation Some astronomers study how matter behaves using: Particle accelerators The idea that everything in the universe came from a single dense ball 10 to 20 billion years ago has been named: The Big Bang Theory -Apex- :)
When was universe formed?
The universe was formed long time ago. Answer The Big Bang theory has estimates of about 13.7 billion years ago for the time of origin of the Universe. In other words, time (or Real time, if you distinguish between Real and Imaginary time - see Stephen Hawking's A Brief History of Time) began 13.7 billion years ago. In accord with General Relativity, space-time began 13.7 billion years ago. The beginning was a hot, dense, tiny singularity which expanded with explosive speed.
What does the term big bang mean?
big bang refers to the way scienctists think the world is created.they think there was a big bang and the universe was formed. there are also different religions that disagree with this and some other scienctist do have different views of this as some think the universe is getting smaller.
Billions of stars in a concentrated or dense group in space is what?
When billion of stars are in a concentrated dense cloud it is called a galaxy.
Where did the dense singularity originate that existed before the Big Bang?
In a universe model, the term 'where' in context of a singularity has no meaning. Our understanding of spacial geometry, which we use to estimate where we are, depends upon our positional relationship to our known universe. But if the universe is infinitessimally small, then there is no measurement of position, because everything is in the same place..In a multiverse model, in which there are several universes coexisting in adjacent parcels of space at the same time, then the term 'where' is definable, but not measurable. In this case, we could say that the singularity is so many billion/trillion/quadrillion light years from the next closest universe, but we have no means of measuring distances that large.
What does Hubbles law tell us about the beginning of the universe?
It shows that in the past, galaxies were closer together; also, it suggests - as is commonly believed nowadays - that some time in the past, all matter in the Universe was very close together, in a very hot and dense state.
How did the universe start other than the big bang?
The universe began with a rapid cosmological expansion from an extremely hot and dense state.
According to the big bang theory how did the universe begin-?
The latest estimate is 13.7 billion years ago.
