el What did the people think about the universe long ago?
f) What was Galileo expected to study? What did he do instead and why?
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To understand the universe, cosmologists first needed to know our place in it. About 400 years ago, most people believed that Earth was at the center of the universe. They thought the Moon, the Sun, and the other planets all traveled around Earth. ... Some cosmologists think the universe will keep getting bigger forever.
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