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Physics, Astronomy & Cosmology / Re: Are black holes the oldest known part of the Universe?
« on: 22/12/2017 22:06:01 »Quote from: OP
Are black holes the oldest known part of the Universe?One cosmological viewpoint is that our universe formed within a black hole:
Initial small size + initial huge mass = black hole
We would still be within this black hole.
If true, this black hole would be the oldest thing in our universe.
See: https://en.wikipedia.org/wiki/Black-hole_cosmology
Failing this:
- The Cosmic Microwave Background Radiation dates from about 300,000 years after Big Bang. This has been detected.
- There should be relic neutrinos which date from about 1 second after the Big Bang. But these have been red-shifted so severely that they have not been detected as yet.
- There should be relic gravitational waves which date even closer to the Big Bang. Scientists are looking for signs of this in the polarisation of the Cosmic Microwave Background Radiation. As yet this has not been confirmed (there was a false alarm from the BICEP2 experiment at the South Pole, subsequently explained as galactic dust by more detailed results from the Fermi space telescope).
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