The problem space is actually infinite or finite is still much debate.

Observed universe, of all places can have impacts on people from the Big Bang, is certainly finite, the transfer rate does not exceed the interactive speed of light. Edge of the horizon to our universe 13.7 billion light years. But what we see at the edge took place 13.7 billion years ago. Because the universe did not stop it, at present, the edge has to go the distance is roughly about 78 billion light years (7.4 × 1023 km), also known as the companion of the gap edge.

Thus, the volume of the observable universe is September 1 × 1033 cubic light years (considered as the universe is spherical). Observable universe contains about 7 × 1022 stars, grouped in about 100 billion galaxies, focus groups of galaxies and galaxy super group. Number of galaxies, the Hubble Deep Field observations by the Hubble Space Telescope, can more than estimated above.

Most astronomers use the word "universe" when it comes to "observable universe". The reason is that physical phenomena are also observed around the universe does not work to do and we have no scientific value.
We are located right in the heart of the observable universe [citation needed]. This is against the Copernican principle, saying that the universe is homogeneous and no heart. The reason is that all interactions are moving with maximum velocity is the speed of light. We look further, then that is as we look to the past, and is limited at the new Big Bang explosion. Light and motion with the same velocity in all directions to us, we are located in the heart of the universe observed.

Ingredients

Observations about the universe today that it is a no-time flat (on the macro scale) contains energy-density of 9.9 × 10-30 gram weight on the block Centimeter. Of which 73% dark energy (from the shape does not think time), 23% dark matter (failure from the orbit of the galaxy and the measurement of black holes) and 4% of all chemical elements (think from observations of celestial bodies emit light or electromagnetic radiation) [1] The nature of dark matter and dark energy is not understood well.
During the beginning of the Big Bang, matter and antimatter together often are born with equal weight. However, due to violation of CP symmetry, the amount of material common occupied rate gradually higher. Matter and antimatter remaining from the destroyed pair with each other to produce photons, and cosmic Left of material excess as usual today. [2]
Before the first star formation, chemical composition of the universe contained mostly hydrogen (75% total volume), and a helium-4 (4He) (24% total volume) with a little the chemical elements remain. [3] A small amount of isotope dotori, 3He and lithium (7Li). [4] Then, through the generation of stars born and die, the space between the stars is added add the products of fusion reactions, often launched by the supernova explosion, wind star ... [5]
Big Bang also to a large number of photons (in the form of background radiation was observed) and the neutrino. The temperature of the radiation decreased steadily as the universe expands, and now down to 2.725 K, with maximum radiation in the microwave wave. [6] of the neutrino density today is about 150 seeds on the block Centimeter . [7]
Space shape

Results for picture taking of the WMAP cosmic microwave background radiation have suggested that the universe is quite flat and do not have contact information
See also: The shape of the universe, the macro structure of the universe
Shape of the universe is an important question in cosmology.
The first question of our universe is "flat" Euclidean geometry and compliance on distance macro or not? Currently, most of the universe is a universe of information observed rather flat, not only the seat-time distorted by the local concentration of material density unusually high (as in black holes). This comment is strengthened by evidence of the WMAP experiments, an experiment looking at the "variation" of the cosmic microwave background.
The second question is the universe we have that information or not? The model of the Big Bang, our universe has no borders, but can only contain a finite amount of space. This is similar to the surface of the sphere: the surface has no boundary, the finite surface area (4πR2) we go on this surface by a "line" the past and will again on the spot old. Example three-dimensional equivalent called "space bridge" discovered by Bernhard Riemann, with the volume (2π2R3). If our universe is the same way, when we take the "line", we will return to the starting point after going out "perimeter" of the universe. This also leads to an interesting result as we can see more images of the same star, the light from it can go much space around the eyes before we (like many of the images candle between parallel mirrors). This question is not answered explicitly, but the results of flat space, the possibility of a universe that information is already low.

Future of the universe

Main article: The future of the universe and hypothesis about the end of the universe
Depending on the density of matter and energy in our universe that will continue forever or expands gradually expands slowly by gravity and fall back, forming The Big Sap. These observations present evidence that the density of matter in the universe is not large enough to reduce the expansion, but even this expansion will accelerate forever.
In 1924, Hubble (1889-1935) long by 2.5 m telescope on Mount Wilson, first discovered the star in the nebula xepheit Andromede have calculated the distance of them and establish that this galaxy outside Milky. This also proves that our galaxy exist in other galaxies outside our galaxy. In 1928, he discovered that galaxies are common translation of the red and I accept that the Doppler effect, and from his observations, he made a rules galaxies moving apart, in the more distant galaxies are moving faster: V = HD (V is the speed to run away a galaxy at a distance d; H, Hubble constant, it is worth about 25km / s for each million years light). If relativity is correct, then that means the universe expansion. Most of the astrophysics today acknowledged this. According to observations made in 1998 at the University of Seattle, the cosmic expansion and accelerated forever.

Multiverse

There are many theories as the universe exists in a structure at a higher level is called multi-universe (en: multiverse). Our Space is one of the most space in the universe. For example, matter falling into black holes in the universe will be our show that the "Big Bang" started a different universe. However the hypothesis of this type is not nothing verifiable. Also for some wider universe billions of light years so we do not have enough material to find out major power of the universe.
However, they are calculated assuming that all four have the most space [8]. Nature always follow a certain law from the micro to the macro universe is not outside this rule. I believe our universe is an atom, the planets of the universe we are the electrons move in the orbit determination and the center of our universe as well as the theory of molecules of this Universe universe we are living is an infinite space can not be determined that existing systems are different universe.

Response space

Universal response (response in the world) is the assumption of a universal constituent components by antimatter may follow physical principles with the principles of physics we currently have. Response space is a space composed of components antimatter. It does not have the physical properties as we know. Nature of the response space completely contrary to our universe. It exists parallel to our universe, but how far. It was formed with the big bang. In case the feedback space close to the universe we will create a new space that is non-physical space, then our universe will disappear.