One of Nasa's retired space shuttles has made a dramatic flypast over the centre of the US capital on the way to its final resting place in a museum. Discovery flew over the monuments along the National Mall in Washington DC at about 10:00 EST (14:00 GMT). Piggy-backing on a modified Boeing 747, Discovery was flying at an altitude of about 1,500ft (457m), Nasa said. The shuttle programme ended in 2011. Discovery will be on show at the Air and Space Museum in Virginia. After circling four times over the Washington Monument, and passing the National Mall over Capitol Hill,...