141-Page PDF Circa 2003 by @NASA of Conceptual ‘In-Space Vehicles’ for Planetary Exploration
I stumbled upon this doc in the NASA NTRS archives. It’s dated November 2003 and proposes ‘five concept missions,’ along with some of the vehicles and engines – and a lot of graphs and math required – to achieve a positive outcome of ‘Human Exploration of the Outer Planets.’ Awesome!
Since its founding, NASA has been dedicated to the advancement of aeronautics and space science. The NASA Scientifi c and Technical Information (STI) Program Offi ce plays a key part in helping NASA maintain this important role.
The NASA STI Program Offi ce is operated by Langley Research Center, the lead center for NASA’s scientifi c and technical information. The NASA STI Program Offi ce provides access to the NASA STI Database, the largest collection of aeronautical and space science STI in the world.