ASTR 220 Collisions in Space
You may contact Dr. Hayes-Gehrke at
firstname.lastname@example.org or x5-5099.
You may contact Ms. Brenneman at email@example.com or x5-2693.
ASTR 220 Fall 2004 course grades have been submitted (as of 11:30am
Wednesday). I don't know how long it will take the grades to get through the
system. You can check your grades at http://www.testudo.umd.edu/apps/grades/.
You can make an appointment with me to stop by and see your final exam
and pick up your last homework. I will be available the afternoons of
Dec. 15 and 16, and the morning of Dec. 17. I will also be available
intermittently next week. Send me an email (address above). I can't
email your grades, but if you call me I can give them to you over the
Enjoy the winter break.
-- Dr. Hayes-Gehrke
Homework 1, due Thursday, September 9, 2004
Homework 1 solutions
Homework 2, due Tuesday, September 21, 2004.
Homework 2 solutions.
Homework 3, due Tuesday, October 5, 2004.
Homework 3 solutions.
Homework 4, due Thursday, October 21, 2004.
Homework 4 solutions.
Homework 5, due Thursday, October 28, 2004.
Homework 5 solutions.
Homework 6, due Thursday, November 4, 2004.
Homework 6 solutions.
Homework 7, due Thursday, November 18, 2004.
Homework 7 solutions.
Homework 8, due Tuesday, November 30, 2004. Gal Crash simulator.
Homework 8 Solutions.
Homework 9, due Thursday, December 9, 2004.
Homework 9 Solutions.
Solutions to class discussion of Night Comes to the Cretaceous.
Solutions to the first midterm.
Solutions to the second midterm.
Links to some reviews of scientific notation:
Some Interesting Astronomy Links
- Info on the Shoemaker-Levy 9
collision with Jupiter
Star, a simulation that lets you send a "rogue star" into the
solar system and see how the gravitational fields interact. Lot's of
fun to break up the solar system.
- Violence in
the Cosmos, a good site on the "Explosive Processes and the
Evolution of the Universe" with lots of pics and definitions.
Earth Impact Hazards
The image in the background of this page was taken by Debra Meloy
Elmegreen and colleges at Vassar College and the Hubble Heritage Team
at the Space Telescope Science Institute.
The material on these webpages is Copyright © 2004 by Melissa N. Hayes-Gehrke and may not be reproduced without my permission.