Where is the center of our universe?
The idea is that we live in a universe with three spatial dimensions that we can perceive, but that there exist “extra” dimensions (maybe one, maybe more than one) that contain the center of the expansion. Just like the two-dimensional beings that inhabit the surface of the balloon universe, we cannot observe the center of our universe. We can tell that it is expanding, but we cannot identify a location in our 3D space that is the center of the expansion. Until this point, we have been describing the redshift of light as a Doppler shift. However, now that we understand the Universe to be expanding, we need to revise this description. The way we understand the cosmological redshift of galaxies is as follows. Picture a photon emitted by a distant galaxy towards the Earth. That photon has a specific wavelength. However, during the trip between the distant galaxy and Earth, the space between that galaxy and Earth has expanded. The expansion of space causes the wavelength of the photon to s
There is no centre of the universe according to the standard theories of cosmology, the universe formed with a “Big Bang” about 14 billion years ago ( according to theories assumtion) and has been expanding ever since. Yet there is no centre to the expansion because It is the same everywhere. The Big Bang should not be visualised as an ordinary explosion but something different. The universe is not expanding out from a centre into space. The whole universe itself is expanding and it is doing so equally at all places, as far as we know .( as many cosmologists probegated this) In 1929 Edwin Hubble announced that he had measured the speed of galaxies at different distances away and he discovered that the further they were away from us the faster they were receding. This seems to suggest that we are at the centre of the expanding universe, but it must be remembered that motion is relative. If the universe is expanding uniformly according to Hubble’s law it will appear to do so from any gal
Our home in the heavens is an island universe of billions of stars. It is shaped somewhat like a pinwheel, and our little solar system is about two thirds of the distance from the center out toward the outer rim. Our island universe is also called the galaxy and the milky way. We look out across the galaxy when we see the milky way looping over the sky, the center of the big wheel is somewhere behind a cloudy cluster of stars in the constellation Sagittarius the summer constellation which rises after Scorpius., the scorpion.
