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11 Cards in this Set
- Front
- Back
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Universe
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Everything that exists in space including all galaxies, planets, stars, moons, and you and me
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Galaxy
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Groups of planets, stars, and gases held together by gravity. There are billions of stars in each galaxy and billions of galaxies in the universe.
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Three types of galaxies/ shapes of galaxy
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spiral- Elliptical: like a hurricane or pinwheel.
Globular: a roundish shape of like a ball Irregular: No real shape. |
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speed of light
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The speed at which light travels= 180,000 miles per second
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Light Year
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The distance light would travel n one year= 5,865,696,000,000= 6 trillion.
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Nebulae
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Mass of interstellar dust or gas where stars are born of formed.
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Red shift
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The universe is expanding.
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Blue Shift
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The Universe is getting smaller.
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Light travels at...
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186,000 miles per second
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Milky Way
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The Milky Way is a spiral galaxy
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Closest Star
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Alpha Centauri. 4.3 light years away.
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