Steven R. Oleson

TL;DR: The Prometheus 1 Spaceship (formerly the Jupiter Icy moons Orbiter), a part of NASA's Project Prometheus, continues development, the Electric Propulsion Segment continues technology development and subsystem design efforts as discussed by the authors.

TL;DR: In this paper, radioisotope electric propulsion (REP) has been shown to offer the performance advantages of traditional reactor-powered electric propulsion at large distances from the Sun, but with much smaller, affordable spacecraft.

TL;DR: The Human Exploration using Real-time Robotic Operations (HERRO) strategy as mentioned in this paper avoids the need for complex and expensive man-rated lander/ascent vehicles and surface systems by using teleoperation from orbit.

TL;DR: In this article, the use of high-power solar arrays, at power levels up to a megawatt, have been proposed for a solar-electric propulsion (SEP) missions, using photovoltaic arrays to provide energy to high power xenon-fueled engines.

TL;DR: The conceptual design of a submarine for Saturn's moon Titan was a funded NASA Innovative Advanced Concepts (NIAC) Phase 1 for 2014 as discussed by the authors, which was found that a submersible platform can accomplish extensive science both above and below the surface of the Kraken Mare.