How long does it take for a pulse of laser light to reach the moon&bounce back to earth?

Answer The speed of light is 186,000 miles per second. The average distance between Earth and the moon is 238,857 miles. With these numbers, we can calculate that it takes light 2.568 seconds to go to the... Read More »

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How does NASA sends photos from outer space to Earth and how long do photos from Jupiter take to reach Earth?

The simple answer is, over a radio transmission containing the picture information and between 35 and 52 minutes depending on how far away we are from Jupiter at the time.NASA has employed many dif... Read More »

How Long Does it Take for Light From the Sun to Travel All the Way to Earth?

The Sun is the star at the center of our solar system, which lights and heats the planet Earth. It takes varying amounts of time for light from the Sun to reach a planet depending on how far away i... Read More »

How long does light take to travel from the star Alpha Centauri to Earth?

Light from Alpha Centauri travels 4.3 light years to reach Earth. A light year is a unit of distance that light can travel in one year, which is equal to 9.5 trillion kilometers. Alpha Centauri app... Read More »

If you travel at 90% of the speed of light, how long will it take to reach the Andromeda Galaxy?

It would take 2.75 million years to reach the Andromeda Galaxy traveling at 90 percent of the speed of light. The galaxy is 2.5 million light years away; a light year is the amount of distance ligh... Read More »