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12-5-1610
Benedetto Castelli, a former student of Galileo, wrote him, that if Copernicus was correct, Venus should sometimes appear "horned" and sometimes not.
More information about:
Benedetto Castelli
Galileo Galilei
More information about:
Benedetto Castelli
Galileo Galilei
Date:
Sunday, December 5, 1610
