In what publication did Galileo Galilei share his astonishing telescopic results in 1610?

Answer

_Sidereus Nuncius_

Galileo Galilei, after rapidly improving the perspective glass, turned the device toward the heavens and documented his findings in a specific work published in 1610. This publication, titled _Sidereus Nuncius_, which translates to _The Starry Messenger_, served as the vehicle for distributing his groundbreaking observations to the learned world. The sheer volume of distribution, with over 500 copies disseminated, cemented these observations, despite the eventual condemnation Galileo faced. This publication was crucial because it presented tangible proof contradicting the long-held, pre-telescopic cosmological views.

In what publication did Galileo Galilei share his astonishing telescopic results in 1610?
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