抄録
Two projects are introduced to verify the performance of space tether technology. A sounding rocket will be launched in the summer of 2009 to deploy a bare electro-dynamic tape tether having a length of 300m. The other project to verify the space tether technology is a small satellite to deploy a bare 25km electro-dynamic tape tether, expected to be launched in 2013. These verifications of tether technology will lead to a large numbers of applications of space tether technology.