In Part 8 of this blog on space in the 21st century we reviewed current and potential technologies to go beyond the limits imposed by chemical rockets in our quest to reach neighbouring destinations in space. Now we will look at technologies that may seem improbable at present, some d

In our last blog on space we looked at alternate methods of getting off the ground into low-Earth orbit. The goal is to lift larger and larger payloads into space so that humans can construct the engines that will allow them to explore the rest of the Solar System and even go beyond t