Ibn-al-shatir's lunar model from which Copernicus is reported to have borrowed in composing his cosmological model. Credit: This work is in the public domain in the ...

The rare manuscript is believed to be one of only 277 known copies of Copernicus' book worldwide. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

In 1508, Nicolaus Copernicus developed a celestial model of a heliocentric planetary system that transformed the way we view the universe. This bold theory, contrary to the geocentric model favored ...