More links related to the SETS lab...
 The Michigan Technic Corporation - Michigan company developing tether technology for multiple applications. Contains information about the STEP-AirSEDS and ASTOR tether missions. Tethers Unlimited Inc. - aerospace R&D company developing long life and high strength space tether technology such as the Hoytether , the Terminator Tether, and Tether Transport Systems. Tether Transport from Low Earth Orbit to the Lunar Surface - studies in using several rotating tethers in orbit around the Earth and Moon as a propellantless means of exchanging supplies between low Earth orbit facilities and lunar bases. Ad Astra Rocket company - This now-private company is a spinoff of NASA's ASPL (Advanced Space Propulsion Laboratory) developing the VASIMR technology. As of June 2008 they have hit a 100kW RF power milestone and are gearing up for 200 kW total RF power with superconduncting magnets. | 
