On this date, Jan. 7, 1610, astronomer Galileo Galilei, with a homemade telescope, noticed three points of light near Jupiter. Initially believing they were distant stars, Galileo’s repeated ...

Handwriting analysis determined that the famed astronomer made notes in this copy of the ancient Greek text in the 1590s, decades before his own observations via telescope revolutionized our ...

The renowned physicist, mathematician, and philosopher would later reject the ideas presented in this very book.