Faster than a speeding bullet it's a bird it's a plane it's the x-43 scramjet!!!!

I can remember reading the Guinness Book of records in the elementery school library. Back then my favorite part was the section on the rocket cars which set the land speed record. Now after a hiatus of a few decades air speed records are being broken again.
http://news.bbc.co.uk/2/hi/science/nature/3613752.stm