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Timeline: Seeing better

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

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2:11pm, May 8, 2009
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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