In a photo like the Hubble Deep Field (Figure 20.1 in your textbook),we see galaxies in many different stages of their lives.In general,which galaxies are seen in the earliest (youngest)stages of their lives?
A)the galaxies that are farthest away
B)the galaxies that have the most hot,young O and B stars
C)the galaxies that are the reddest in color
D)the galaxies that are nearest to us

Question

Quizplus · Accepted Answer

The galaxies that are farthest away are seen in their earliest stages of life because the light from these galaxies has taken the longest time to reach us. This means we are seeing them as they were in the distant past, closer to the beginning of the universe.

In a Photo Like the Hubble Deep Field (Figure 20