You sure they fixed it?
When I look at it in IE, it's still broken.
When I look at it in FF, it resolves, but as I pointed out in the first post, this appears to be FF doing internal rewriting because when I look at the HTTP headers, it request is for www.nasa.gov
In other words, this is the Firefox Domain Guessing [support.mozilla.org] not the NASA server setup that is "fixing" it. The NASA server is still broken as far as I can tell.
Try it in IE or Chrome.