Anthology of astronomical texts

Galileo Galilei (1564-1642)	Letter to Christine of Lorraine Introduction to "Dialogue about the two greatest world systems" Abjuration act
Joseph Glanvill (1636-1680)	The telescope
Bernard de Fontenelle (1657-1757)	Conversations about worlds plurality
Giorgio Abetti (1882-1982)	Relationships between Sun and Earth phenomena (sorry, only in Italian)
Clyde Tombaugh (1906-1997)	In pursuit of the ninth planet (sorry, only in Italian)
Carl Edward Sagan (1934-1996)	Cosmos (sorry, only in Italian)