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The telescope was improved by Galileo in the early 1600s. Suddenly, the universe had no privacy.

✓ TRUE FACT
Galileo improved telescopes around 1609–1610, increasing magnification enough to observe Jupiter’s moons and phases of Venus. Early instruments magnified roughly 20×, which was revolutionary for astronomy and navigation.

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The telescope was improved by Galileo in the early 1600s. Suddenly, the universe had no privacy. | SmartAss Facts