Are there planets around other stars? Are there Earth-like planets
around other stars? Do any of those harbor life? Intelligent life?
We'd like to know the answers to all of these questions, and in recent
years we've made great progress towards at least answering the first.
To date, more...
Published 12/01/06
What is a planet? Is Pluto a planet? This lecture traces the debate on
the nature of what it means to be a planet by taking an historical approach,
looking at how the question has arisen with the discovery of the asteroids and
later Pluto and the Kuiper Belt. Many of the issued raised at the...
Published 11/30/06