At the time, Aristotle's ideas seemed quite logical and people believed them for many years.

Many years later, Kepler and Galileo eventually proved Aristotle wrong. So you see, what appears as "common sense", is not always right.

Time after time in science, ideas and theories come along to replace the ones that were there before.

Did you know that Galileo's finger is still on display at the Institute and Museum of the History of Science of Florence, Italy?