In the above observations of the CMB, the mottled (i.e., non-uniform) appearance is due to ___________ in a/an ____________ Universe.

Question

Quizplus · Accepted Answer

The mottled appearance of the CMB is due to irregularities in the early universe. The fact that these irregularities are visible on large scales suggests that the universe is flat. Hotter temperatures would not necessarily lead to a non-uniform appearance of the CMB. Open or closed universes would also not necessarily lead to a non-uniform appearance, as this is determined by the amount and distribution of matter and energy in the universe.

In the Above Observations of the CMB, the Mottled (I