Universe

Front

The sun and all of the planets and other bodies that travel around it.

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Solar System

Front

A relatively large spherical body that orbits a star.

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Planet

Front

A relatively large spherical body that orbits a planet.

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Moon

Front

A large celestial body that is composed of gas and that emits light.

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star

Front

A collection of billions of stars/solar systems, dust, and gas bound together by gravity.

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Galaxy

Front

A large cloud of gas and dust in interstellar space; a region in Space where stars are born.

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Nebula

Front

The distance that light travels in one year; about 9.46 trillion kilometers.

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Light Year

Front

The actual brightness of an object such as a star

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Luminosity

Front

A gigantic explosion in which a massive star collapses and throws its outer layers into space.

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Supernova

Front

CHALLENGE: The most commonly accepted theory (& show!) that explains the beginning of our known universe is the -

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Big Bang Theory