Endeavor's Final Launch Delayed 48 Hours 2.39K Jim Newell 04/29/11 12:02PM Filed to: Briefly Briefly Nasa Endeavor Space Appic Tweetg Today's bittersweet final launch of the space shuttle Endeavor has been delayed at least 48 hours over a "heater failure." Those 700,000 tailgaters are going to be unbelievably wasted by Sunday.