The Milky Way is a spiral galaxy, which means it is constantly in motion. Not only do the nine planets in our solar system rotate around the sun, but the sun itself is in orbit around the center of the galaxy where a massive black hole can be found. This black hole creates an enormous…

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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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