The unremarkable-looking object is in fact one of the most important artifacts in the history of science: it's one of only two surviving telescopes known to have been made by Galileo Galilei ...

By the 17th century, famed engineer and astronomer Galileo Galilei refined Copernicus' heliocentric model using observations made with telescopes he built himself. However, it was not until Kepler ...

Two columns have been added, and above them the curtain with the dedication to Galileo’s patron ... but Copernicus looks out toward the reader and holds his model of the heliocentric system in a more ...