en.wikipedia.org/wiki/Light-year

A light-year is a unit of length used informally to express astronomical distances.
It is approximately 9 petametres, or 9 trillion kilometres (or about 6 trillion miles).
As defined by the Internat...

www.universetoday.com/45047/how-far-does-light-travel-in-a-year/

And so in a single year, light travels a total of 9,460,528,000,000 m, or
5,878,499,817 miles. As you probably know, astronomers use the distance that
light ...

earthsky.org/space/what-is-a-light-year

Feb 20, 2013 ... A light-year is how astronomers measure distance in space. It's defined by how
far a beam of light travels in one year – a distance of six trillion ...

www.space.com/15830-light-speed.html

May 22, 2012 ... The first known discourse on the speed of light comes from the ancient Greek ... A
light-year is a measure of both time and distance. It is not as ...

www.thefreedictionary.com/light year

The distance that light travels in a vacuum in one year, approximately 9.46 trillion
kilometers (5.88 trillion miles). 2. often light years Informal A long way: a small ...

cse.ssl.berkeley.edu/bmendez/ay10/2000/hw/soln1.html

A light-year is the distance light travels in one year. If light travels at a speed of
186,000 miles/second how many miles are there in a light-year? How many ...

www.chegg.com/homework-help/questions-and-answers/5-distance-light-travels-one-year-called-light-year-given-light-travels-speed-3-108-meters-q6561447

5) The distance that light travels in one year is called a light year. Given that light
travels at a speed of 3 * 108 meters in one second. Determine and write an ...

www.ucolick.org/~mountain/AAA/aaawiki/doku.php?id=how_long_would_it_take_us_to_travel_to_alpha_centauri

Feb 2, 2009 ... If light travels at 186,000 miles per hour and a star is 75,000 light years away ...
First of all, a light-year is the distance light travels in one year.

science.howstuffworks.com/dictionary/astronomy-terms/question94.htm

No one wants to write or talk about numbers that have 20 digits in them! So to
measure ... A light year is the distance that light can travel in a year, or: 186,000 ...

www.shodor.org/unchem/math/units/units4.html

One light-year is the distance that light travels in exactly one year. If the speed of
light is 6.7 x 10<sup>8</sup> mph, convert light-years to: a. miles b. meters ...