Life In Space

Hasn't a top NASA person said that radiation is a big problem and something that prevents people living in space?

This is a quote that's often used as proof that we couldn't have gone to the moon or journeyed beyond the Van Allen belt.  It's an accurate statement, radiation is a problem that will need to be conquered before any attempts are made to live or travel in space long-term.  The problem exists if we want to live on the moon, travel to Mars, or even further.  It was spending months or even years in space that was being discussed, not the short trips to the moon and back that the Apollo missions did.  So the 'top NASA person' is being quoted out of context.