The CMB is a snapshot of the radiation in the universe at a redshift of z 1,000 when the universe was about
A) 1,000 times smaller than it is today.
B) 10 times smaller than it is today.
C) 2 times smaller than it is today.
D) the same size as it is today.
E) 10 times larger than it is today.

Question

The CMB is a snapshot of the radiation in the universe at a redshift of z  1,000 when the universe was about
A) 1,000 times smaller than it is today. 
B) 10 times smaller than it is today. 
C) 2 times smaller than it is today. 
D) the same size as it is today. 
E) 10 times larger than it is today.

Quizplus · Accepted Answer

The Answer of The CMB is a snapshot of the radiation in the universe at a redshift of z  1,000 when the universe was about
A) 1,000 times smaller than it is today. 
B) 10 times smaller than it is today. 
C) 2 times smaller than it is today. 
D) the same size as it is today. 
E) 10 times larger than it is today.

The CMB Is a Snapshot of the Radiation in the Universe