SSa_ScaleOfSpace



Choose the only statement that makes sense!
 * A: If we want to leave our solar system, we must first get out of the Milky Way galaxy!
 * B: If we want to get out of the Milky Way galaxy, we must first pass by the stars that make up our constellations!
 * C: We have discovered "extrasolar" planets (outside of our own solar system) by looking in a different universe.
 * D: A trip to Pluto would be longer than a trip to the stars of the Big Dipper!

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