Honors First Year Seminar: Are We Alone? Scientific Speculations on Life in the Universe
Steven R. Spangler, Fall 2006

The "Snowball Earth" of 700 Million Years Ago

• Course Syllabus
• Images for Class of August 31
• Images for Class of September 14
• Images for Class of September 21
• Images for Class of October 19
• The Story of Continental Drift
• Notes on Cambrian Explosion
• The Anomalocaris Home Page
• The Ediacaran Age
• BIG IMPACT home page
• The Mass Extinctions
• The Search for Planets Around Other Stars