That is a 6 with 12 zeros behind it About 9.46 trillion kilometers, or roughly 5.88 trillion miles. When we use powerful telescopes to look at distant objects in space, we are actually looking back in time
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Light travels at a speed of 186,000 miles (or 300,000 km) per second.
How many miles are in a light year
Just type the number of light years into the box and hit the calculate button. Light is the fastest thing in our universe traveling through interstellar space at 186,000 miles/second (300,000 km/sec) In one year, light can travel 5.88 trillion miles (9.46 trillion km) A light year is a basic unit astronomers use to measure the vast distances in space.
A light year (ly) is the distance light travels in one earth year It is 9.4607×10 15 meters or 5.8786×10 12 miles, about 63 astronomical units or about 0.3 parsecs. That means the distance a beam of light travels during one year here on earth is about 5.87 trillion miles (9.46 trillion km) Multiply the speed of light by the number of seconds in a year, and you get the magic number
