By Lucas Vieira - Own work, Public Domain, https://commons.wikimedia.org/w/index.php?curid=3270145

#1 One light year is the amount of distance light travels in a single year.

Light travels at about 186,000 miles per second, so one light year equates to approximately 5,900,000,000,000 miles or Five Trillion, Nine Hundred Billion Miles!

of

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
Next