"I was an amateur radio operator and my voice was going up to satellites and I could hear the astronauts speaking, but I could never speak to them."

After an astronaut almost drowned in his spacesuit during a spacewalk, NASA hopes advanced imaging equipment including a CT scanner will help create 3-D pictures of its spacesuits that can be used to better diagnose possible malfunctions.

A report has found that NASA could have prevented last summer's near-drowning of a spacewalking astronaut.