PBS
Pbs Learning Media: Galileo: Discovering Jupiter's Moons
This video segment adapted from NOVA shows how Galileo, using his newly developed refracting telescope, observed four of Jupiter's moons, the first astronomical bodies to be discovered since ancient times.
PBS
Pbs Learning Media: Galileo: Sunspots
This video segment adapted from NOVA shows how Galileo used his telescope to carefully observe and study sunspots.
Science Friday Initiative
Science Friday: Year of Astronomy
The year 2009 was designated as the International Year of Astronomy. This podcast [17:47] looks back at the many milestones in astronomy, including Galileo's accomplishments 400 years ago, what is happening now, and what the Hubble Space...