CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY CARLOS CLARIVAN / SCIENCE PHOTO LIBRARY
Diagram of the lunar cycle as viewed from Earth. The moon travels a distance of 382,400 kilometres as it orbits around the Earth during its 29.53 day lunar cycle. Throughout its travels, the moon waxes and wanes and even becomes invisible to us for a short period. Each of these phases occurs at slightly different times when viewed from different points on Earth.
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