20 We usually do not think of the night sky as a colorful scene. You don't see much color, in fact, if look at the stars with just your eyes. However, scientists with you special equipment now have a different picture of what is in the sky at night. A new series of photographs shows
a. no colors in the night sky.
b. bright colors in the night sky
that the night sky has little color.
d lots of new stars in the night sky.