How does weak background radiation coming from every direction in the sky support the Big Bang Theory?(1 point)
Responses
It provides evidence of universe expansion.
It provides evidence of universe expansion.
It provides evidence of universe contraction.
It provides evidence of universe contraction.
It provides evidence of the universe's decreasing mass.
It provides evidence of the universe's decreasing mass.
It provides evidence of the universe's increasing mass
It provides evidence of the universe's increasing mass.
It provides evidence of universe expansion.
The correct answer is: It provides evidence of universe expansion.
Explanation:
The weak background radiation observed coming from every direction in the sky is known as the cosmic microwave background (CMB). This radiation is a remnant of the early stages of the universe, specifically from a time known as the epoch of recombination, when the universe became transparent to light.
The Big Bang Theory suggests that the universe began with a hot and dense state, expanding from a single point known as a singularity. As the universe expanded, it began to cool down, and about 380,000 years after the Big Bang, atoms formed for the first time. At this point, light was able to travel freely through space, creating the CMB.
The presence of the cosmic microwave background provides strong evidence for the Big Bang Theory and supports the idea of universe expansion. The uniform distribution of this radiation in all directions suggests that it originated from a single point (the initial singularity) and has been stretched out as space itself expanded. This background radiation helps confirm the predictions made by the Big Bang Theory and provides crucial evidence for the early stages of the universe's evolution.