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...logical time''', is the [[time]] [[coordinate]] commonly used in the [[Big Bang]] models of [[physical cosmology]].<ref>In mathematical terms, a cosmic tim ...n, In other words a non-standard cosmology, the hypothetical moment of big bang is still decided using the test result cosmological models which may happen ...

...f Cosmology]], the universe has been and is expanding. The classical [[Big Bang]] theory assumes that the universe expanded at the same rate throughout uni ...inflation, so the temperature balance was still held. In the classical Big Bang theory this was a problem because the uniform expansion would mean that obj ...

...s it was from around 80 million years to 420 million years after the [[Big Bang]]. The mission will deliver data of the formation of the first stars, the b ...At a redshift of about 1100, equal to about 400,000 years after the [[Big Bang]], when the [[Primordial nucleosynthesis|primordial plasma]] filling the un ...

...energy a given piece of something has. Since the speed of light is such a big number, this means that even a small amount of matter can have a lot of ene ...y long time ago, both [[matter]] and antimatter mixed together. If the Big Bang made equal amounts of matter and antimatter, then the two would annihilate ...

...tant]] which is ignored by any bound material structures. Similarly in the Big Rip scenario the Hubble constant increases to infinity in a finite time. ...continues to increase, but the dark energy tends to stop over time. So the Big Rip does not happen. Phantom energy has ''w''&nbsp;<&nbsp;−1, which means t ...

...ts the dots. So, to make a map of the real world, Heisenberg had to make a big change. He had to do something to pick out only the numbers that would matc ...for something important. Therefore, Einstein said, quantum mechanics had a big hole in it. Quantum mechanics was incomplete. ...

...pular theory of cosmology is called the [[Big Bang]]. According to the Big Bang theory, the universe was formed 15 billion years ago, in what is called a " ...

...ate of our [[universe]] may be the [[heat death of the universe]] or the [[big rip]]. Before that happens, it is possible to predict that the following wi | The [[Hawaii (island)|Big Island]] will sink beneath the surface of the ocean. However, there will st ...