Oh, that's a magical question, isn't it? The estimated radius of the observable universe is about 46.5 billion light-years. It's quite a wondrous thought to imagine just how vast and colorful our universe truly is.
Oh, that's a big question, friend! The estimated volume of the Universe is quite vast, with many galaxies and stars filling that space. Scientists use complex methods like observing the rate of expansion of the Universe to calculate its approximate volume. Just imagine all those beautiful swirling colors, blending together to create something truly magnificent!
Well, isn't that just a beautiful question? Scientists estimate that there are about 10^80 atoms in the observable universe. That's quite a lot of tiny building blocks, all coming together to create our wondrous cosmos! Just imagine the amazing intricacy and beauty that each of those atoms adds to our world.
Pollux is a red giant star and is estimated to be around 8.8 times the size of our Sun. Its radius is approximately 72 million kilometers.
There is no end. They Universe is always expanding due to the big bang. ----------------------------------------------------------------------------------------- No, the Universe actually closes in on itself. If you left from here in any direction, and you went far enough and fast enough, you would arrive right back here. In any case, the Universe does not have any boundaries.
We as humans currently do not know for sure what the exact size of the universe is due to technological limitations, and the universe is likely infinite in space. However, we do know how far we can see into the universe. From our vantage point on Earth, we can observe objects up to about 46 billion light years away, proving that the universe is in fact quite large! As mentioned above we do not know really how big the Universe is. However, in recent years, using methods not even conceived of until recently, it is fairly certain that the time since the Big Bang which is the beginning of the Universe as we know it is very close to 13.7 billion years. This has come from the WMAP satellite which measured the Microwave Background Radiation which is the remnant of the original energy release from that incredible explosive beginning of the Universe. Now that would normally mean that the Universe should not be more then 13.7 billion light years in any direction. This seems to be what we are seeing when we look out into the very limits of the Universe using our best telescopes in space and on the ground. There is a possibility that the Universe could be much bigger then that as the Big Bang theory requires a brief period of "Inflation" were the expanding space of the Universe had to travel much faster then the speed of light briefly in order to make all the observed consequences of the Big Bang theory come to pass. This could expand the whole Universe well beyond the limits of the time involved. So far this has not proven to be the case. Yet space can expand faster then the speed of light. Remember travel in space is managed by the "Higgs Field" which limits travel to the speed of light. Whereas space itself can expand faster then the speed of light as there is no restriction in how fast space itself can expand, it just requires an enormous amount of energy which was available for only a short time immediately after the Big Bang occurred. That means within quintillionth's of a second.
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.
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.
Oh, that's a big question, friend! The estimated volume of the Universe is quite vast, with many galaxies and stars filling that space. Scientists use complex methods like observing the rate of expansion of the Universe to calculate its approximate volume. Just imagine all those beautiful swirling colors, blending together to create something truly magnificent!
The observable universe is constantly expanding due to the ongoing expansion of the universe. This means that the size of the observable universe is not constant and will continue to increase over time.
The estimated atomic radius of mendelevium is 194 pm.
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.
First, you would measure the diameter of the Universe in miles, or its volume in cubic miles; but what would you want to measure in square miles?Second, the size of the Universe is not currently known. The observable Universe has a radius of about 46 billion light-years. Convert that to kilometers or miles if you like. One light-year is about 10 million million kilometers. But the entire Universe is probably much, much bigger.First, you would measure the diameter of the Universe in miles, or its volume in cubic miles; but what would you want to measure in square miles?Second, the size of the Universe is not currently known. The observable Universe has a radius of about 46 billion light-years. Convert that to kilometers or miles if you like. One light-year is about 10 million million kilometers. But the entire Universe is probably much, much bigger.First, you would measure the diameter of the Universe in miles, or its volume in cubic miles; but what would you want to measure in square miles?Second, the size of the Universe is not currently known. The observable Universe has a radius of about 46 billion light-years. Convert that to kilometers or miles if you like. One light-year is about 10 million million kilometers. But the entire Universe is probably much, much bigger.First, you would measure the diameter of the Universe in miles, or its volume in cubic miles; but what would you want to measure in square miles?Second, the size of the Universe is not currently known. The observable Universe has a radius of about 46 billion light-years. Convert that to kilometers or miles if you like. One light-year is about 10 million million kilometers. But the entire Universe is probably much, much bigger.
Not much, really. Our Universe MIGHT be significantly larger than what we can see -- that portion of our Universe we call the "observable Universe" -- or it might be infinite. No conclusion can be made about the size of our Universe based on the fact of the Big Bang.
Among other things, it would be a great coincidence that the Universe ends right where our instruments can no longer observe anything.Moreover, there are reasonings based on cosmic inflation, according to which the Universe must be at least a thousand times larger than the observable Universe. This is related to the isotropy of the Universe in the observable part. Any initial anisotropy must be spread out over a much, much larger region of space.
At present, the size of our Universe is unknown. Because light can travel no more than about 300,000 kilometers per second, and because light has only been traveling to us since the time of recombination; there is a limit on how much of our Universe we can see. How much larger is our Universe, beyond what we can presently see, is a matter of speculation.
It is not yet certain what size the Universe is, not even approximately - but it is probably not infinite. If you have seen an estimate about the number of galaxies in the Universe, it probably referred to the OBSERVABLE Universe, which is definitely not infinite.
The entire OBSERVABLE Universe must have been smaller than the size of a proton. Since the ENTIRE Universe is much larger, and perhaps infinite, we really don't know how large that was.