A different kind of starlight: Gravitational Lensing
Something made me throw this one in under this starlight topic. :) I've found gravitational lensing very interesting (now, if I could just get through the math part!).
http://casa.colorado.edu/~raosten/project/cosmo.html
http://vela.astro.ulg.ac.be/themes/extragal/gravlens/bibdat/engl/
Marcia
-It may be a flat universe, but it is in 3D.
