All Questions
3
questions
1
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1
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Transparency of hydrogen to different electromagnetic wavelengths in the early universe
I can somehow grasp the early universe being compared as a sphere surface filled densly with plasma like a spherical chessboard all filled with chess pieces.So as that surface streched the distances ...
- 1,815
-2
votes
1
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Why is it said that photon-wavelengths have increased by a factor of 1000 since our universe became transparent to light?
After reading several explanations for the so-called "Hubble-radius", and still being confused, (as I reckon are some of the folks who tried to answer THAT question !!), I have a related question, ...
13
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7
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4k
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Is it possible that galaxies' redshift is caused by something else than the expansion of space?
I was thinking that maybe photons loss energy naturally when they travel great distances.
Or maybe the mass of all matter is increasing over time and therefore photons emitted in the past are ...
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