Just curious (maybe foolish)?

Question

universe consists of Stars, Planets, comets, asteroids etc.,. It is called universe? Then, is there other universe outside the universe? I mean, universe is just like the shape of Earth and once it was believed there was only star, moon and sun, later that concept was changed. Also people thought Earth was flat and that concept was also changed.

So is the universe is shaped like a Globe, semi-circle or an ellispse?

Answer 1

Who really knows. Einstein didn't and neither does Stephen Hawking. It is beyond our comprehension. Just enjoy life. Don't analyze the joy out of it.

Answer 2

Maybe the universe that we witness is only one stage in an infinitely progressing encapsulating series of universes in both directions from decreasing orders of size to increasing orders. What if say every atom in our universe is actually another entire universe, or if our own universe is just an atom or some other particle in someone else's universe? I'm not really answering your question I know, but how could I. I'm just giving you more ideas to add to the confusion. Who knows. Maybe you'll be the one to see some clarity in the whole thing.
To really try to answer your question though I'll say this. You mention that throughout history our beliefs as to the order of the universe has changed. And during those previous times I'm sure that all of those "in the know" were just as steadfast in their beliefs as those in the know are today. Sure the tools that we use to make observation have become exponentially more sophisticated over time, but does this necessarily mean that our current observations and the interpretation of those observations are actually correct? Maybe because it seems that we can't observe everything that we can "know" nothing. It could also simply be in man's unavoidable nature that we only can see with our brains assemblage of the information our eyes pass to us which may not even be an accurate parallel with reality.
As the current belief stands, logically (if logic can actually be used) according to the big bang theory the universe should be roughly sphere shaped if the density of the singularity it all started from was uniform. And since no matter can supposedly travel faster than the speed of light then it should all be visible from our location here on earth . Or any other location in the universe for that matter.
Ah, this has a very good chance of not helping you that much, but I've spent so much time that I'll post it anyways. Anyone can message me if they have any rebuttal or further ideas.

Answer 3

The blackbody radiation left over from the Big Bang has been transformed by the expansion of the Universe into the nearly isotropic 2.73 K cosmic microwave background. Tiny inhomogeneities in the early Universe left their imprint on the microwave background in the form of small anisotropies in its temperature. These anisotropies contain information about basic cosmological parameters, particularly the total energy density and curvature of the Universe. Maps at four frequencies clearly distinguish the microwave background from foreground emission. The angular power spectrum of the microwave background, and peak at Legendre multipole lpeak = (197 plusminus 6), with an amplitude DeltaT200 = (69 plusminus 8) microK. This is consistent with that expected for cold dark matter models in a flat (euclidean) Universe, as favoured by standard inflationary models.

Thus the universe is FLAT. No donut nor sphere just a space were everything is layed out. A straight line will be a straight line and will not curve as it would have been the case for a spherical or donut shaped universe.

Answer 4

Think of the universe as a flat basketball. Place it on a hard surface and press on the top of it, you'll get a basic idea of the current theory of the shape of the universe. However this is a very basic understanding concept to say the least. The universe contains all of the galaxies, galaxies contain all the stars, planets rotate around these stars and so on down to the atomic level.

Answer 5

The term universe has a variety of meanings based on the context in which it is described. In strictly physical terms the total universe is the summation of all matter that exists and the space in which all events occur. The part of the universe that can be seen or otherwise observed is usually called the known universe, observable universe, or visible universe. Because cosmic inflation removes vast parts of the total universe from our observable horizon, most cosmologists accept that it is impossible to observe the whole continuum and may use the expression our universe, referring only to that knowable by human beings in particular. In cosmological terms, the universe is thought to be a finite or infinite space-time continuum in which all matter and energy exist. It has been hypothesized by some scientists that the universe may be part of a system of many other universes, known as the multiverse.

The most important result of physical cosmology, the understanding that the universe is expanding, is derived from redshift observations and quantified by Hubble's Law. Extrapolating this expansion back in time, one approaches a gravitational singularity, a rather abstract mathematical concept, which may or may not correspond to reality. This gives rise to the Big Bang theory, the dominant model in cosmology today. The age of the universe from the time of the Big Bang, was estimated to be about 13.7 billion (13.7 × 109) years, with a margin of error of about 1 % (± 200 million years), according to NASA's WMAP (Wilkinson Microwave Anisotropy Probe). However, this is based on the assumption that the underlying model used for data analysis is correct. Other methods of estimating the age of the universe give different ages.

A fundamental aspect of the Big Bang can be seen today in the observation that the farther away from us galaxies are, the faster they move away from us. It can also be seen in the cosmic microwave background radiation which is the much-attenuated radiation that originated soon after the Big Bang. This background radiation is remarkably uniform in all directions, which cosmologists have attempted to explain by an early period of inflationary expansion following the Big Bang.

Answer 6

Think of the universe as if it is a dream. There is absolutely no known limit. It has no shape, form, or uniformity.

If it were a sphere(or any other shape), it would be within a frame of reference. The universe contains all that exists. If something exists outside of the universe, then the universe expands to contain it, therefore nothing exists outside of the universe.

The preceding was entirely scientific.

Answer 7

Yes, there could be millions of other universes out side our universe. The shape of it could be anything but with volume - not flat for sure - it could be oval, round, shape like a Jelly blob we don't know. There is no necessity for it to be a globe like earth - even earth is not 100 % globe.

Answer 8

According to theory the universe should be somekind of elliptical figure since the big bang would have exploded from a time point in all directions. Think of blowing up a baloon, as pump air into the baloon it expands in all directions in some kind of circular eliptical shape.

Also, the universe represents all of this explosion or surface of baloon, there should be nothing outside of this as this is everything

Answer 9

Well, the term Universe begins with uni-meaning one which only refers to what we know of "out there" that is our Uni-verse. In theory there is of course areas outside our realm of exploration. If we did explore them then they would just become part of our universe, make sense? Like if there was another species out there a billion light years away, they might consider us part of their Universe if they've been here.
The universe has no shape.

Answer 10

Universe is not Globe, semi-circle or an ellispse...its just space all around. Every thing which lies in universe has to be of round/elliptical shape because of surface tension.

Our universe which is called Milkyway is small part of the very huge space. You can't define the shape of milkyway.

Thanks

Answer 11

Once Keppler said. Universe is even larger than where your thoughts can go. So nobody can speculate the size. Still since Spehere is a shape which can withstand maximum force, ppl say universe is spherical.