This is the second part to the article about tether propulsion. It will focus on space missions that tested tethers in space. Gemini 11 mission: 1966 Gemini 11 mission with tether visible. Image credit: NASA. The first such mission took place in 1966. Gemini 11 deployed a 30m tether connecting it to the Agena target vehicle. It created a small amount of artificial gravity (0.00015 g) by spinning the two spacecraft. TSS-1 mission: 1992 The deployment of the TSS tethered satellite The TSS-1 (Tethered Satellite System-1) was a joint NASA-Italian Space Agency project. It was flown during STS-46 aboard the Space Shuttle Atlantis from July 31 to August 8, 1992.…