The Blue Room
Geologists searching for the volcano at Yellowstone National Park didn’t understand why they couldn’t find it. That was, until they realised the volcano wasn’t in the park; rather the park was in the volcano. And so it is with us down on the ground. Even with all our tech it’s hard to get a proper overview. We still tend to think of the horizon as, well, horizontal. One of the glorious things that the Apollo 8 Earthrise photo did was to show…