Galileo Galilei has been dead for the better part of four centuries. But he's still pointing fingers at the Museo Galileo in Florence, Italy. When the famous scientist died at the age of 77 in ...

And Cynthia Graber talks with Paolo Galluzzi, director of the newly reopened Museo Galileo, the science museum in Florence, Italy. Plus, we test your knowledge of some recent science in the news.

Galileo died at the age of 77 on Jan. 8, 1642, in his home in Arcetri, near Florence. He developed heart palpitations and a fever but little more is known about his final illness.

Galileo published this groundbreaking observation in his book Sidereus Nuncius (Starry Messenger) in March 1610. Galileo's "cannocchiali" telescopes at the Museo Galileo, Florence.