Lecture 4-Energy sources
Lecture 4, PPT version
Lecture 4 January 31 - Center for Astrophysics and Space
Lecture 4 - Twin Cities - University of Minnesota
Lecture 4 - Physics and Astronomy
Lecture 4 - Orbits of the planets
Lecture 4 (pdf from the powerpoint)
Lecture 4
Lecture 4
Lecture 4
Lecture 4
Lecture 4
Lecture 3a
Lecture 3: The age of the elements, and the formation of the earth
Lecture 39: Life in the Universe The Main Point Simple Life vs
Lecture 39
Lecture 37: The Pale Blue Dot
Lecture 36: Strange New Worlds
Lecture 35. Habitable Zones.
Lecture 34: Habitable Zones around Stars
Lecture 34 – Exobiology- Life Elsewhere in the Universe