Tethers Unlimited Has Developed A System For Deorbiting Small Dead Satellites

       I have blogged before about all the debris orbiting the Earth left over from space launches. It is estimated that there are more than one hundred million pieces of debris that are less than 1 centimeter in size. They are too small to track with radar but are big enough to cause serious damage to a space craft because they are traveling so fast.

Chinese Scientists At Tsinghua University Have Patented A Carbon Nanotube Fiber That Could Make A Space Elevator Possible

        One of the more fantastic ideas for getting into space is the space elevator. The basic idea is that a super strong cable reaches from the Earth’s surface to a huge counterweight that is beyond the twenty-three thousand miles geosynchronous orbit. Vehicles like elevator cars would climb up and down the cable lowering the cost of sending things to and from orbit by several orders of magnitude.

NASA Interstellar Probe Project - Part 3 of 3 Parts

Part 3 of 3 Parts (Please read Part 1 and Part 2 first)
      One big stumbling block for the Interstellar Probe project is the fact that best heat shield ever used by a NASA probe is only able to protect a probe that comes within four million miles of the Sun. The Interstellar Probe would have to come within two million miles of the Sun in order to make best use of the gravity boost.

Space 270 - Tethers Unlimited Awarded Five Phase I NASA Grants

        I have written about Tethers Unlimited (TU) before. They are a private space company located in Bothell, WA. Years ago, when they were founded, tethers were thought to hold great promise for a number of space applications. As time passed, that promise faded and so did the money available for research and development.

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