Earth Science Chapter 1
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Last updated 8:58 PM on 1/13/26
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6 Terms
1
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Modern Cosmology
The study of the structure and
evolution of the Universe
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The Universe is made of:
stars, galaxies, nebulae, and
many other celestial objects
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Terrestrial planets
Terrestrial planets (small): Mercury, Venus, Earth, and Mars
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Jovian planets
Jupiter, Saturn, Uranus, and Neptune
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Speed of light:
300,000 kilometers per second
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Light-year
the distance light travels in a year (9.5
trillion km)
Note 
Flashcards (22)