Key Technologies to Enable Near-Term Interstellar Scientific Precursor Missions, published in 2013, 95 pages. This Cosmic Study considers the near-term implementation of robotic Interstellar Precursor probes, which should be considered as precursors to true interstellar missions. Destinations for such missions include the heliopause at >100 AU and the Sun’s inner gravity focus at 550 AU. Current propulsion systems capable of reaching such destinations on trajectories requiring decades of travel time include the solar sail and nuclear-electric rocket. As well as presenting a consideration of near- and far-term propulsion technologies to implement such missions, this Study considers multiple aspects of potential destinations, science, and associated technologies.