Chapter 7VenusMonday, January 14, yChapter 7Venus-Nearly the sam seize as Earth; surface hidden by clouds-hot, dense atmosphere; extreme greenhouse effect-Even hotter than Mercury: 470* C, day and nightEarth-Only known place in universe with life-the only surface liquid water in the solar system-a surprisingly large moon• only celestial object humans have visitedMars-looks almost Earth-like, but cold thin atmosphere-giant volcanoes, a huge canyon, polar caps-Water flowed in distant past (life?Asteroid Belt-Most asteroids orbit the Sun between Mars and JupiterJupiter (jovian)-Mostly H/He; no solid surface-Many moons and rings1Monday, January 14, y• Io-Active volcanoes all over• Europa- Possible subsurface ocean• Ganymede- Largest moon in solar system• Callisto- a large, cratered “ice ball”Saturn (Jovian)-Giant and gaseous (H and He)-Rings• not solid-Many moons, including cloudy TitanUranus (Jovian)-Smaller than Jupiter and saturn but larger than Earth-made of H/He gas and Hydrogen compounds-extreme axis tilt-moons and ringsNeptune (Jovian)-similar to uranus-many moons including
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