Question

question 13
if a galaxy is 10.3 billion light - years from earth, the light from that galaxy took light 10.3 billion years to reach us.
true
false

Explanation:

A light - year is the distance that light travels in one year. So if a galaxy is 10.3 billion light - years away, it means the light from that galaxy has been traveling for 10.3 billion years to reach us.

Answer:

True