NASA today said a chipped thermal tile on Discovery's belly doesn't appear to be a serious problem. That's based on what engineers have seen so far.
Meanwhile, Discovery's astronauts today slowly and delicately inspected the wings and nose for damage from yesterday's launch. It's the first flight since the 2003 shuttle Columbia disaster over East Texas.
Discovery had settled into orbit when NASA disclosed that an object -- believed to be a piece of thermal tile -- appeared to have broken off. Also during liftoff, a large object , perhaps a piece of foam insulation , seemed to fly off from the big external fuel tank -- but did not hit the shuttle.