Space, And it's Applications
This be a topic for the discussion of valid ideas and theorys on space born technology, implements, and structures. And pretty much anything having to do with manmade stuff in space.
So, I'll get the ball rolling with a little descriptor of nanotech in space.
With an artificial 0g pull on orbiting body's in space, a Nanotech manufacturing plant could be created to capitalize on the properties of materials that would normally collapse if created inside of a gravity field.
These materials, being wholly different from the ones we see around us, would therefore have exotic, and most probably useful properties.