Guinnessy writes: "Many of you will remember the excitement around biosphere 2, a project to enclose 8 people in a sealed environment to see if they could survive a year on just the resources produced inside the dome. It failed (although they did discover some interesting data from it). Now, in the UK, a bunch of scientists, engineers and environments have created the Eden Project, a similar scheme (e.g. closed environments mimicking various climate conditions around the world) to biosphere 2 except the general public can walk through the domes to learn about the importance of plant life. Wired News magazine has an excellent article explaining some of the technology used in its construction (it amazed me how far they have come compared to the biosphere 2 design) and how it is educating the public." Hey, according to Mission to Mars all you need is some flapping canvas to keep your habitat secure.