+18 How Far Can Light Travel In One Year References. Web november 23, 2022 by david ryan. Web a light year is the distance that light travels in a vacuum in one year.
The speed of light is 300,000,000 meters/second, and there are 365 x 24 x 60 x 60 = 31,536,000 seconds in a year. As light travels at constant speed, the distance light travels in a year can be calculated using. Light is the fastest thing in our universe traveling through interstellar space at 186,000 miles/second (300,000 km/sec).