From http://www.randi.org/jr/071103.html:
The page in question (http://www.nasa.gov/about/contact/index.html) has an email address listed. Will that do?
Theoretically, that sounds easy to do. In actuality, it's a horror. Go to NASA's official page, www.nasa.gov and you'll see. Look over the entire page. The only likely button there is labeled, "Contact NASA" at the upper right. Okay, press it. On this next page, you'll find 3 more buttons labeled "Contact NASA," all of which bring you back to the page you're already on. Remaining on this set-up, there's only one likely way to go, at the top center: "Multimedia." Press. Now you see 2 more "contact NASA" buttons, but you'll ignore those. In fact, you're stopped dead. There's NO WAY to "contact NASA." Give it up.
The page in question (http://www.nasa.gov/about/contact/index.html) has an email address listed. Will that do?