Question

The light from one end of the Milky Way galaxy takes about 150,000 years to travel to the other end. Which of these statements is correct about the Milky Way galaxy?
A: The distance between the two ends of the galaxy is 150,000 light years.

B: It would take 150,000 years to photograph one end of the galaxy from the other end.

C: Both ends of the galaxy would meet if they move a distance of 75,000 kilometers each.

D: Both ends of the galaxy would meet if they move towards each other at the rate of 75,000 kilometers per hour.

Answer 1

A: The distance between the two ends of the galaxy is 150,000 light years.