# 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 108 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