Ok, I have no life. So I did the math. In 14.5 Billion years, going the speed of light, we have gone 851,871,242,200,000,000,000 miles. ? ? 1T 1B 1M 100k 1k Note - This is only 8.518172422 E^22 The number of atoms in 1 mole of a substance is 6.022 E^23 :)