Mercury is the closet planet to the Sun at a distance of 36 million miles. The closest star to the Sun is Proxima Centauri, which is 4.24 light years away. A light year is 5.9 ­× 10^12 miles. Select the correct exponent from the drop-down menus that makes each statement true. The distance in miles from Mercury to the Sun in scientific notation is 3.6 × 10 Choose... . The number of miles from the Sun to Proxima Centauri in scientific notation is 2.5 × 10 Choose... . The distance from the Sun to Proxima Centauri is about 7 × 10 Choose... times greater than the distance from the Sun to Mercury.