where there are fresh aftershocks four days after a deadly earthquake there. part of a building in christchurch came crashing down to the ground as krcrews survey the damage. a thirpd of the buildings in central christchurch must be rebuilt after the quake. officials raised the death toll today to 145 dead, and they say there are more than 200 still missing. for the last time space shuttle "discovery" will dock at the international space station today. the shuttle and crew of six will pull up to the orbiting lab this afternoon. astronauts are spending at least a week in the space station to unload a compartment full of supplies. they're also unloading the first humanoid robot into space. it's actually tweeting. talk about technology. and here's another view of "discovery" taking off, and this is from an airplane, and "discovery" streaks tluch the