While Galileo Galilei lived during the Renaissance period (c. 1300-1600), he is often considered to be a figure of the Scientific Revolution, which followed the Renaissance.

Here's why:

* The Renaissance focused on a revival of classical learning and art. While Galileo was a brilliant observer and a skilled writer, his primary contributions were in science and mathematics.

* The Scientific Revolution emphasized empirical observation and experimentation. Galileo's groundbreaking work with the telescope and his experiments on gravity and motion directly aligned with this new way of thinking.

* Galileo's challenges to the established scientific order (like his support for the heliocentric model) were more in line with the spirit of scientific inquiry that defined the Scientific Revolution, not the artistic and cultural revival of the Renaissance.

So, while Galileo lived during the Renaissance, his contributions and his impact are more closely associated with the Scientific Revolution.