
Despite the fact that now the only document which seemed to support the ascription of authorship to Galileo has been declared false, the emergence of different original documents makes this identification certain.

In the view of some scholars, the accompanying letter - which is currently hosted in the Fondo “Cardinale Pietro Maffi” in Pisa - seemed to confirm that Galileo was indeed the author of the Considerazioni Astronomiche. However, the true identity of the author was never established with certainty. For one, Fortunio Liceti - Galileo’s colleague at the University of Padua - referred to Aliberto Mauri as someone who “pretended” to be an astronomer though he might rather have been an expert mathematician. This treatise was known to have been written under pseudonym, and since its publication in 1606 it had been attributed by some to Galileo himself. Starting in the late 1970s, in order to explain the reasons behind this letter, scholars hypothesised that the accompanying letter was proof that Galileo had actually written a controversial treatise, Considerazioni Astronomiche di Alimberto Mauri. One of these documents was a counterfeit letter signed by Galileo that was thought to accompany a book entitled Libro della Considerazione Astronomica.

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When these documents were authenticated at the start of the 20th century, the authentication process was based on other documents attributed to Galileo, which were subsequently revealed to also be forgeries.
