Giovanni Battista Zupi
He was born in Catanzaro. In 1639, Giovanni was the first person to discover that the planet Mercury had orbital phases, like those of the Moon and Venus. His observations demonstrated that the planet orbited around the Sun. This occurred thirty years after Galileo's first telescope design, and Zupi's was only slightly more powerful. He died in Naples.
- Mazzucato, Michele T. (2008), Italiani nel sistema solare (in Italian), Maggioli Editore, p. 90, ISBN 9788838742217