Nasa has ordered Endeavour's crew to take a close look at a damaged tile on the space shuttle's delicate heat shield this morning.
Using a robotic arm, astronauts are now scrutinising a gouge on the shuttle's underbelly with a camera and laser attached to a boom.
The location and size gives engineers some confidence that the damage is not the type that caused the disintegration of the space shuttle Columbia in 2003. They also note that similar damage on Endeavour in 2007 - coincidentally commanded by Scott Kelly, brother of current commander Mark Kelly - turned out not to be a problem.
Space shuttle undergoes inflight inspection after photos reveal damage to heat shield tiles :: Mail Online 
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