Ever since ancient times, people have reported spotting strange things in the sky above that did not originate on Earth.

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The birthplace of a star is called a nebula. It is a vast cloud in space composed of hydrogen and cosmic dust, which is the remains of a dead star.

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Ever since 1988, satellites have been detecting radio signals from outer space, which could be coming from as far away as 15,000 light years.

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Four planets in our solar system have rings including Jupiter, Uranus, and Neptune, but the most famous is undoubtedly Saturn.

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As the Earth’s only natural satellite, the moon takes 27.3 days to complete its orbit and 29.5 days to complete its waxing and waning cycle.

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