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Question 1:
The Hubble Space Telescope is a well-known observatory that has made many interesting discoveries over the past 17 years. Ask your teacher to tell you how his or her view of the universe has changed over the past 17 years.
Answer:

Your teacher may describe the telescope’s launch on April 24, 1990, or the first servicing mission in December 1993, or the first time a Hubble image appeared in your teacher’s textbooks.

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