# How long does it take light to travel 1 light year?

If you are wondering, there are just

**about 31,500,000 seconds**in a year, and if you multiply this by 186,000 (the distance that light travels each second), you get 5.9 trillion miles (9.4 trillion km)—the distance that light travels in one year.A.

### How far can light travel in one day?

It really is an incredibly long distance -- a lightyear is roughly 6 trillion miles or nearly 10 trillion kilometers. Here's how you calculate it. You start with the speed of light, which is

**about 186,000 miles**per second. Then you multiply that by 3,600 seconds in an hour.#### Can light travel through a solid?

Probably more than you wanted to know, but because**light**waves and sound waves are very different kinds of waves they**travel**at very different speeds. As stated before, sound**can travel through solids**, liquids, and gases. As a rule sound**travels**slowest**through**gases, faster**through**liquids, and fastest**through solids**.#### What is faster than the speed of dark?

Most of us already know that**darkness**is the absence of**light**, and that**light**travels at the**fastest speed**possible for a physical object. So, what does this mean? In short, it means that, the moment that**light**leaves,**darkness**returns. In this respect,**darkness**has the same**speed**as**light**.#### Can light travel through water?

Propagation of waves has both a speed and a direction, called the velocity. The velocity of**light**changes depends on the material it**travels**through. If I get a glass of a**water**then the**light will**go slower because**light travel**faster in air..

B.

### How many years is equal to 1 light year?

It is approximately 9 trillion kilometres (or about 6 trillion miles).[note

**1**] As defined by the International Astronomical Union (IAU), a**light**-**year**is the distance that**light**travels in vacuum in one Julian**year**(365.25 days).[2] Because it includes the word**year**, the term**light**-**year**is sometimes misinterpreted as a#### How long is 1 light year in years?

The light-year is a unit of length used to express astronomical distances. It is about 9.5 trillion kilometres or 5.9 trillion miles. As defined by the International Astronomical Union (IAU), a light-year is the distance that light travels in vacuum in one Julian year (**365.25 days**).#### How long does it take light to travel one light year?

This duration is a bit of a problem, as it makes space exploration a painstakingly slow process. Even if we hopped aboard the space shuttle discovery, which can travel 5 miles a second, it would take us**about 37,200 years**to go one light-year.#### How far is it from Earth to Mars?

54.6 million kilometers

C.

### How far the light can travel?

The speed of light in a vacuum is

**186,282 miles**per second (**299,792 kilometers**per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.#### What do you call the distance that light travels in one year?

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.#### What does light travel through the fastest?

The fastest thing in the whole universe is the speed of light in a vacuum (like outer space!), clocking in at a great 2.99 x 10^{8}m/s. Light travels in**waves**, and we call this traveling propagation. Propagation of**waves**has both a speed and a direction, called the velocity.#### How many miles does light travel in one second?

The speed of light in a vacuum is**186,282 miles**per second (**299,792 kilometers**per second), and in theory nothing can travel faster than light. In miles per hour, light speed is, well, a lot: about 670,616,629 mph. If you could travel at the speed of light, you could go around the Earth 7.5 times in one second.

Updated: 29th September 2018