Write a letter from the Milky Way galaxy to the Andromeda galaxy to
catch up and plan an upcoming visit. Include the answers to the following
questions in your letter, and write your response in complete sentences.
a) How far away are the galaxies from each other?
b) How long does it take a letter to travel between them (at the speed of light)?
c) Can they see each other?
d) How do their shapes compare?
e) What is their size difference?
f) How do their star numbers compare?
g) What is located at the center of each galaxy?
h) When will they visit each other?
i) What will happen during this visit?