When I first saw this Angus McKie illustration, I had a moment when I thought it depicted the Earth being encased in a huge, space-going shell and I flashed back to Damon Knight's spectacular novel Why Do Birds?, a straight-faced yet comic novel about a man who puts the whole human race in a box. Then I realized that the picture depicted a hollow, space-going sphere being fitted with an armored cover and my mind spun into a deep future from which it hasn't entirely returned. Beautiful work. Here's the official McKie site, but it appears to be down.