Answer:
Like Christmas lights
Step-by-step explanation:
From his essay, ackerman tried to show to the reader what the earth looks like from a distance in space especially during the night hours compared to how it used to look in 1972.
The dominant expression he created is that when the earth is viewed from space at such an hour, it can be likened to Christmas lights. According to him it would seem like all the continents have been light up, making it seem magical.