The CubeSat Tethersat, planned to launch July 2013, aims to test electrodynamic tether propulsion. See http://www.uk.amsat.org/?p=9165 73 Trevor M5AKA AMSAT-UK International Space Colloquium takes place Guildford Sept. 15-16 http://www.uk.amsat.org/colloquium/twelve AMSAT-UK News on Twitter: http://twitter.com/AMSAT_UK ----