== Regarding Image:STS-1_flight_insignia.png and PNG transparency == 

 Hi, I saw the image on the front page, and read your comments. Internet Explorer can show PNG transparency, but won't do it as other browsers do. So don't worry about fixing it for IE. 

 I would keep it as it is, i.e., just make sure it looks right on Moz/Konqueror, and either Microsoft will change IE7 to support png transparency in a 'normal' way, or, I guess, the guys who write MediaWiki will write a hack some time in the future. PNG is the best format for those smoothe edges. 

 Just my opinion and advice.