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Timeline: Seeing better

In 400 years, telescopes advance from rooftops to mountains to orbit

1608
Invention of the telescope. Claimed by Dutch lensmaker Hans Lippershey, although others (including Jacob Metius and Zacharias Janssen) are also sometimes credited.


Galileo's Telescope | Source: Istituto e Museo di Storia Della Scienza
GALILEO'S TELESCOPE | Istituto e Museo di Storia Della Scienza

1609

Galileo improves the telescope and begins using it for astronomy, starting with lunar observations.


Johannes Kepler | Source: Gary Brown/Photo Researchers Inc
Source: Gary Brown/Photo Researchers Inc

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