Discussion Topic for Session 5: Post an article that is about Searching for Extrasolar Planets. This can be about any of the many recent discoveries of planets orbiting other stars.

General Information about Discussions: The purpose of the discussions is to keep up to date with recent discoveries and also to engage you in rich, scientific discussion. Each session you are asked to post an article from the Internet and to lead a discussion about the content of the article with a group of your classmates. Discussions are an important part of the course and thus are worth 33% of your grade. They are live during each session and can not be made up later.

For each session you should:

1. Post a scientifically-valid article on the session’s topic with its URL and a 1-3 paragraph summaryof the article for your groupmates. Do this well before the Deadline 1 (see top of page). You must post a unique article that no one has posted yet in the group.