Questions & Answers

Saturn Educator Guide • Cassini Program website — • EG-1999-12-008-JPL A P P E N D I X 1 225 Questions & Answers Saturn 1. When did we discover Saturn? We don't know exactly when ancient observers first recognized what we now call the planet Saturn. Many ancient civilizations were aware of five wandering points of light in the night sky, which were later named for gods of Roman mythology — Mercury, Venus, Mars, Jupiter, and Saturn.

• planets
• cloud layers
• light gases like hydrogen
• ring
• friction of liquid helium
• hydrogen
• particles
• planet
• earth
• heat