Two galaxies are currently separated by 55 Mpc.Roughly how long did it take for them to reach this separation?
A) 13.7 billion years
B) 250 million years
C) 4.6 billion years
D) less than a second
E) 27 billion years

Question

Quizplus · Accepted Answer

The current separation of galaxies is largely due to the expansion of the universe since the Big Bang, which occurred approximately 13.7 billion years ago.

Two Galaxies Are Currently Separated by 55 Mpc