cosmic background radiation

Question 1

background ideas of cosmic background radiation

Answer 1

• during the photon epoch, everything was really hot and really hot things emit light
• therefore during the photon epoch there was a lot of light emitted
• since the universe is still expanding, some of that light should still be travelling to earth
• but because of the expansion the light waves would be stretched into radio waves

Question 2

what is CMB radiation

Answer 2

• light which was stretched with the universe into radio waves
• it is literally everywhere
• proof for the big bang theory

Question 3

what does the image of the universe’s CMB radiation imply

Answer 3

300,000 years after the big bang , the universe’s temperature was non-uniform
- blue where atoms were able to form, and red where they were not
- galaxies are not evenly spread throughout the universe and supports the big bang theory