Space is measured in Kilometers (Km), Astronomical Units (AU), and Light Years (Ly). The difference between these three types of measurements is that a kilometer is one thousand meters. An astronomical unit is 150 million kilometers. A light year is 9,461,000,000,000. We use kilometers and astronomical units to measure the distance between stars and planets in a solar system. We use light years to measure the distance between galaxies and other galaxies.
The Moon is 384,403 kilometers away from the Earth. It would take 14 hours to get to the moon.
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