From Galileo to Hubble:
Why a Telescope in Space?
Before you begin your lessons perhaps you could use some basic background information about telescopes.
You may already have some ideas and answers to these questions, but just to make sure we will view the following slide show taking you on a journey through time.
As you view the following slides you will be asked "Challenge" questions, so remember to make mental-notes (or take notes if you prefer).
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