What does revolve mean?, move in a straight line , move in a circular orbit around, Does the earth orbit around the sun? , yes, no, What do astronmers study? , astronaughts, living things, stars, outer space, planets, Was Galileo an astronomer? , yes, no, What do telescopes do? , help people see things up close, help people see big things, What does observation mean? , to wonder , to think, to see, What is a mission?, important task, silly task , a movie, What do sattelites do? , nothing , revolves around, a larger object in space., sit in outerspace, what does lunar mean? , crazy , moon , loose, What does ascent mean? , to go up , to go down , What does descent mean? , to go up , to go down, What happens if something malfunctions? , it works, its explodes, it fails, What are constellations? , group of stars, group of people , group of animals.

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