The diameter of the Milky Way is 2 x 10²⁰ meters. The radius of Earth is 6.37 x 10⁶meters. About how many times as great is the diameter of the Milky Way than the radius of Earth? The diameter of the Milky Way is about Answers: 4.37 X 10¹⁴ 3.1 X 10¹⁴ 4.37 X 10¹³ 3.1 X 10¹³
