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Very good article. This is the first time I've ever seen the radiation problem mentioned in the press. The comment about maneuvering to Lagrange points and a first target being a very low gravity object are dead on as well.

Face it, it's going to be boring, plodding slow progress for the remainder of our lives in this department.

To me the exciting area is the the private sector, eg SpaceX launching the first privately designed.built liquid fueled rocket into orbit.

SpaceX is an interesting story in itself.