Max Tegmark's library: gravitational lensing
Here are some recent articles in the popular
press that will give you an idea of why I find gravitational
lensing so exciting.
This is from issue 405 of Nature (May 2000):

This is from the May 30, 2000 issue of USA Today.
(If you find this hard to read, there's a version without the
figure on the web site of
USA Today.
This is from the May 20, 2000 issue of Science News:

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This page was last modified February 8, 2001.
max@physics.upenn.edu