A treasured manuscript in a college library that was believed to have been written by Galileo is a forgery, university says

A prized manuscript in the University of Michigan library that was believed to have been written by the famed Italian astronomer Galileo Galilei is a forgery, the university said.

source https://www.cnn.com/style/article/galileo-manuscript-michigan-university-forgery-scn/index.html