File talk:080998 Universe Content 240.jpg

In today's universe there still are photons and neutrino's. Why are they not shown in the graph? Do they now represent an amount of energy that is negligible when compared to atoms? Have they been absorbed by matter or is their energy deminished in another way?


 * The CMB photons released into space 380,000 years after the BB have since been stretched (because of the expension of the universe) by a factor of about 1000 and photon energy is inversely proportional to wavelength. The story for neutrinos is similar. 145.97.223.103 (talk) 21:56, 19 February 2011 (UTC)

How is the universe only 380,000 years old? Is this when it is classified as having finished forming? —Preceding unsigned comment added by 24.118.253.102 (talk) 20:29, 21 May 2011 (UTC)
 * The above comment wasn't saying that the universe is 380,000 years old. It's only referring to the point in time of 380,000 years after the big bang, which I think was important because that's when space first became transparent to light.  Before a certain time, the photons in space would be reabsorbed and emitted again rapidly so we can't get any information about it from telescopes. -Theanphibian (talk • contribs) 02:24, 9 November 2012 (UTC)