Exactly. Is this not very similar to the program that was recently cancelled? Reading this actually made me quite angry, and I'm someone who is a fan of new te

Exactly. Is this not very similar to the program that was recently cancelled? Reading this actually made me quite angry, and I'm someone who is a fan of new technology, especially new space technology. What new ground is being covered here? "President Obama challenged us to be bold and dream big, and that's exactly what we are doing at NASA". I have to disagree. This looks a lot like NASA is about to reinvent the Saturn V. Surely it's best for NASA to completely draw a line and vow to never develop any more (conventional) launch vehicles. In orbit assembly presumably is exactly the kind of thing they should be investigating. Unless of course they plan to do all their deep space exploration via a single rocket launch?