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Scientists can not even begin to estimate the size of the universe just before the Big Bang. The Big Bang destroyed all information about what existed before it occurred. Scientists have attempted to discover the size of the universe at the time of the Big Bang. The closest they can get by extrapolation is ten with an exponent of minus 32 of a second afterward. The guesses range from the size of a man's hand to a single point. No one understands what caused it. The secret may lie in two sets of equations, one involves the Theory of Relativity and the other involves quantum physics. So far no one has resolved the conflict between the two. If you can, maybe you will figure it out.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoThis is an area of active research. The size of the visible universe can be estimated, but it is not known how big the universe really is, or even its general shape (for example, whether it returns back to itself, like the surface of a sphere, or what).
Wiki User
∙ 12y agoThere's not enough information to answer uniquely; it could be a number of galaxies, a number of stars, a number of protons, etc. If you want to know what the number of a specific object is, you need to ask about that object (e.g. "How many stars are in the universe"?) but I'm pretty sure all three of those have already been asked and answered here.
I take it that you are referring to the number of stars, and it is fascinating to note that a recent study by two eminent universities (one British, one American) came up with the "probable" figure of 3 septillion - that's 3 followed by 24 zeros, and if you can envisage that number of anything you are pretty smart!
Wiki User
∙ 14y agoThe universe came into existence with the Big Bang, so asking how big it was before that is meaningless.
Wiki User
∙ 13y agoString theory aside, scientists believed that all space and time came into being after the big bang. There was no space, so the universe was dimensionless.
Wiki User
∙ 14y agoSmaller than what is currently a subatomic particle. Then it started expanding, and it continues expanding to this day.
Wiki User
∙ 14y agoThe size of a pinhead.
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How many different frequencies estimated in Universe?
There are nearly an infinite number of different frequencies to be estimated in the universe. Because of its sheer size, the universe can contain a nearly limitless number of variables and possiblities.
Is a googol larger than all of the atoms in the universe?
A googol is larger than the estimated number of atoms in the observable universe.
How can we estimate the size of universe?
Currently we can't. It seems quite certain that the Universe is, at the least, several times the size of the OBSERVABLE Universe. However, this is just a lower bound, and the actual size of the Universe may be anywhere between that, and infinity.
Is it true that your universee is inside a universe?
Yes. Our universe started as a size of our hands, then the size of earth. Then became HUGE
Where was Antarctica 500 billion years?
500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.
How many different frequencies estimated in Universe?
There are nearly an infinite number of different frequencies to be estimated in the universe. Because of its sheer size, the universe can contain a nearly limitless number of variables and possiblities.
How many atoms are in the universe?
The visible universe is estimated to contain between 1078 and 1080 atoms.(One estimate at the higher end of the range is 4 x 1079.)This is the estimated number of atoms in the observableuniverse, but since we do not know the absolute size of the universe, we cannot be certain.(Most of the matter in the universe is still hydrogen.)
How many galaxies found in the universe?
The observable Universe has somewhere around 1011 galaxies. The entire Universe is much larger than the observable Universe, but currently, it is not known exactly how much larger. It might be infinite in size, but in any case, it is estimated that the Universe is a lot larger than the observable Universe.
When was the formation of the universe?
The Universe has an age estimated to be about 13.8 billion years.
Does the universe have a definite size?
The universe has been continuously growing since the Big Bang, and there is no way to accurately measure it, so no. Comments: In fact astronomers have estimated the size of the "Observable Universe". They say there's probably a lot more that we can't see. The Universe is about 13.8 billion years old. That gives the maximum distance we can observe as 13.8 billion light years. But while the light from the "edge" of the Observable Universe has been travelling to us, the Universe has been expanding. Astronomers have estimated how far away that edge is NOW. The usual estimate given for the "real" radius of the Observable Universe is about 46 billion light years.
Why is the age of the universe estimated to be 13.5 Billon years?
Because that is how old the universe is believed to be
How large is the known universe?
The observable Universe has a diameter estimated at 93 billion light-years.
What is the estimated number of galaxy mergers since there are 100 billion galaxies in the universe?
The estimated number of galaxy mergers, given that there are 100 billion galaxies in the universe, is 100 billion.
What is the estimated number of satellite galaxies since there are 100 billion galaxies in the universe?
The estimated number of satellite galaxies, given that there are 100 billion galaxies in the universe, is 170 billion.
What two ideas did Greeks philosophers have about the universe?
They thought the Earth was the center of the Universe. They also thought that the Sun was 300 times the size of Earth. Last but not least the ancient Greeks estimated that the circumference of the Earth was around 28,000 to 29,000 miles.
Is the size of the universe falsifiable?
Yes, the size of the universe is absolutely falsifiable because the universe has not been accurately measured. Once the universe is accurately measured, it will be much more difficult to falsify its size.
What is the estimated number of galaxy groups since there are 100 billion galaxies in the universe?
The estimated number of galaxy groups, given that there are 100 billion galaxies in the universe, is 100 to 200 billion.
