SUMMARY: Dutch astronomer Christian Huygens was born on April 14, 1629; exactly 375 years ago. He was an influential astronomer who improved on Galileo's original telescope design by developing new techniques to grind and polish lenses. With his improved telescope, Huygens was able to resolve the rings of Saturn better than anyone at the time, and realize their true shape as rings. He also discovered Titan, Saturn's largest moon. He died in 1695.

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