ASTR 220 Collisions in Space

Fall 2010

The class website is on the Enterprise Learning Management System that is used by the university. The URL is Once there, you will need to login with your university Directory ID and password. If you do not know your Directory ID, or you forget your password, there are instructions on the website about what to do. The syllabus and assignments will be posted there, as well as being distributed in class.

Course Intro

Contact Information

Note: email addresses are

PersonEmail @umd.eduCampus Phone
Dr. Melissa Hayes-Gehrkemhayesgex5-5099

The image in the background of this page is of the near-Earth asteroid Eros and was taken by the NEAR Project, NLR, JHUAPL, Goddard SVS, and NASA.
The material on these webpages is Copyright © 2010 by Melissa N. Hayes-Gehrke and may not be reproduced without my permission.