• CosmicTurtle0@lemmy.dbzer0.com
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    5 months ago

    Uses telescope to observe Mars

    Yup, that’s round.

    Is taken up into space to look down at the round Earth

    No, it’s still flat. The windows are curved to make it look round.

    Is taken to Mars with the same telescope and it’s pointed at Earth

    The glass on the telescope is round, which makes the Earth look round.