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A solar system contains...
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A single star and planets
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How many centimeters are there in one kilometer?
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100,000
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The average distance from Earth to the sun is...
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1 AU
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64,200,000,000 is equal to...
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6.42 X 10^10
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4.4 x 10^6 divided by 8.8 x 10^10 is equal to...
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5.0 x 10^-5
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If light takes 8 minutes to reach Earth from the sun and 5.3 hours to reach Pluto, what is the approximate distance from the sun to Pluto?
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40 AU
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The sun is..
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A star, 1 AU from Earth, more than 100 times the diameter of Earth
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If the nearest star is 4.2 light-years away, then...
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The light we see left the star 4.2 years ago.
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Which arrangement is in order of increasing size, left to right?
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Planet, star, solar system, galaxy
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The Milky Way Galaxy...
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Contains about 100 billion stars
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In science fiction movies, it is common to use a space craft to travel across the Milky Way Galaxy or to assert that we have been visited by alien space craft from the other side of the Milky Way Galaxy. If one has a space craft that can travel at the speed of light, to an observer on the earth, how long will it take to go from one edge of the Milky Way Galaxy to the other and return?
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150,000 years
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Suppose we wish to travel to the nearest star using a super space ship capable of traveling at 1´1010 km/yr. We have nothing even close to this space ship yet. How long will it take us to get to the nearest star which is about 4´1013 km away from us?
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4000 years
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Which sequence is correct when ordered by increasing size?
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Earth, Solar System, Milky Way, galaxy clusters
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If we say that an object is 1,000 light-years away we see it...
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As it looked 1,000 years ago.
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If the distance from the Sun to the Earth is represent by roughly 15 meters, then the distance from the Earth to the Moon on the same scale would be...
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Smaller than your hand.
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