Question

What are the two possible explanations for not seeing something glowing brightly along every line-of-sight in the sky? I. The universe is infinite in size and infinitely old, but dust absorbs starlight from far away stars. II. The universe has a finite number of stars. III. The universe is changing in some way as to prevent us from seeing an infinite number of stars.a) I and II
b) I and III
c) II and III
d) I, II and III

Answer 1

Answer:

B. I and III

Explanation:

Options I and III are correct. We are not able to view stars at all points in the night sky due to the fact that the size of the universe is  infinite and the universe is made up of dust , gases, and matter. These components are able to trap starlight . Also the cosmos is constantly changing as there are interactions between bodies that make up the universe.