Les Johnson - Visions of the Future
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Stammtisch
les's PATENTS
Laser pulsed fiber optic neutron detector
Combination solar sail and electrodynamic tether propulsion system
electrodynamic tether
Les's publications
space tethers
implementation options for the propel electrodynamic tether demonstration mission (2014)
propel-tug: design for an electrodynamic tether tug demonstration (2013)
space tethers (review paper) (2012)
the propel electrodynamic tether demonstration mission (2012)
Space demonstration of bare electrodynamic tape-tether technology on the sounding rocket s520-25 (2011)
propulsion and power from a rotating electrodynamic tether at jupiter (2000)
conceptual design issues of a spinning tether orbital transfer system (2000)
future application of electrodynamic tethers for propulsion (2000)
PROPULSIVE SMALL EXPENDABLE DEPLOYER SYSTEM EXPERIMENT FROM THE AIAA JOURNAL OF SPACECRAFT AND ROCKETS (2000)
MISSION ANALYSIS OF SPINNING SYSTEMS FOR TRANSFERS FROM LOW ORBITS TO GEOSTATIONARY (1999)
INTERNATIONAL SPACE STATION ELECTRODYNAMIC TETHER REBOOST STUDY (1998)
ELECTRODYNAMIC TETHERS FOR REBOOST OF THE INTERNATIONAL SPACE STATION AND SPACECRAFT PROPULTION (1996)
propulsion for missions to the moon and mars
A comparison of lunar lander options for robotic exploration of the moon (2009)
a comparison of transportation systems for human missions to mars (2004)
near-term sei science missions utilizing an evolutionary lunar transportation system (1992)
in space propulsion technologies
advanced propellantless in-space propulsion technologies (2015)
Rapid small package delivery service to mars via beamed energy (2014)
DEVELOPMENT PRIORITIES FOR IN-SPACE PROPULSION TECHNOLOGIES (2013)
NASA'A IN-SPACE PROPULSION TECHNOLOGY PROGRAM: OVERVIEW AND UPDATE (2004)
NASA'A IN-SPACE PROPULSION TECHNOLOGY PROGRAM: OVERVIEW AND STATUS (2003)
PROPULSION TECHNOLOGIES FOR EXPLORATION OF THE SOLAR SYSTEM AND BEYOND (2002)
PROPELLANTLESS PROPULSION TECHNOLOGIES FOR IN-SPACE TRANSPORTATION (2001)
interstellar propulsion
Propulsion technology assessment: science and enabling technologies to explore the interstellar medium (2015)
status of solar sail propulsion: moving toward an interstellar probe (2007)
A strategic roadmap to centari (2005)
interstellar propulsion research within nasa (2001)
interstellar exploration: propulsion options for precursors and beyond (1999)
Nuclear propulsion
benefits of nuclear electric propulsion for outer planet exploration (2002)
performance requirments for a nuclear electric propulsion system (2002)
Space science
nasa's discovery program: moving toward the edge (of the solar system) (2008)
inner magnetosphere imager (IMI) solar terrestrial probe class mission preliminary design study (1995)
imaging the earth's magnetosphere from space - the inner magnetosphere imager mission (1993)
spacecraft design considerations for an inner magnetosphere imager mission (1992)
mitigation of adverse environmental effects on lunar-based astronomical instruments (1992)
effects of lunar enviornment on optical telescopes and instruments (1991)
Solar sails
nea scout and lunar flashlight: two near-term interplanetary solar sail missions (2015)
solar sail propulsion for interplanetary cubesats (2015)
solar and drag sail propulsion: from theory to mission implementation (2014)
near earth asteroid scout (2014)
gossamer roadmap technology reference study for a sub-l1 space weather mission (2013)
an overview of solar sail propulsion within nasa (2013)
multiple neo rendezvous using solar sail propulsion (2012)
solar sails: technology and demonstration status (2012)
nanosail-d a solar sail demonstration mission (2011)
status of solar sail technology within nasa (2011)
solar sail propulsion enabling new capabilities for heliophysics (2010)
recent advances in solar sail propulsion systems at nasa (2006)
The development of solar sail propulsion for nasa science missions (2004)
Space technology
lightweight integrated solar array (lisa): providing high power to small spacecraft (2015)
lightweight inflatable solar array: providing a flexible, efficient solution to space power systems for small spacecraft (2014)