I don't know what made me think of this, but any of you who are a bit into Nordic mythology would probably be familiar with the Bifrost, the bridge that connects Earth, Midgard with the home of the Gods, Asgard. The bridge is in the form of a Raibow. Now think that by chance we could bring a huge prism, bigger than the Sun, and we place before the sun, then we could have our own Artificial Bifrost. Imggine this could happen in a future nordic culture, where mythology is artificial. Like a Science fiction movie.