What are the origins of the Geocentric and Heliocentric models
put foward to explain planetary motion? This lecture begins a new
unit that will chart the rise of our modern view of the solar system by
reviewing the highly influential work by Greek and Roman philosophers
who elaborated the first geocentric and heliocentric models of
the Solar System. We di ... Show More
Oct 2007
Lecture 12: The Wanderers
How do the planets move across the sky? This lecture discusses the
motions of the 5 naked-eye planets (Mercury, Venus, Mars, Jupiter, and
Saturn) as seen from the Earth. We introduce the major configurations
of the planets, and then discuss their apparent retrograde motions. The
... Show More
42m 34s