Description
What is the composition and structure of the Earth's atmosphere? Why is
it as warm as it is, and how did it form? Today I will describe the
composition and structure of the atmosphere, the Greenhouse Effect, the
Primordial Atmosphere, and Atmospheric Evolution. The Earth's
atmosphere is a complex, dynamic, and evolving system, and we will use
it as a point of comparison when we begin to examine other planetary
atmospheres in future lectures. Recorded 2007 Oct 31 in 1000 McPherson
Lab on the Columbus campus of The Ohio State University.
A new podcast, Astronomy 141, Life in the Universe, is available
for those interested in continuing an exploration of topics in
modern astronomy.
Published 12/06/09
Are we alone in the Universe? This lecture explores the question of how
we might go about finding life on planets around other stars. Rather
than talking about speculative ideas, like the Drake Equation or SETI, I
am instead taking the approach of posing it as a problem of what to look
for...
Published 11/30/07