That’ s right, a space elevator. This is a serious effort from a number of groups to develop an elevator that could be used to transport stuff – and people – between the earth and space. Conceptually it is a 62,000 mile carbon nanotube composite ribbon that will use mechanical lifters moving up and down the ribbon. It has progessed to the point that LiftPort, one of the companies involved, completed a successful 1,000 foot test of the ribbon and lifter on Sept. 20th.
You can check out their staff blog here