In Spidersilk the novel, the characters travel between dimensions into similar worlds. Although scientist in our own world are barely scratching the surface when it comes to dimensions and alternative universe, they have recently discovered a planet incredibly similar to our own from a distance. Could this planet share some of the same aspect of our own? For more on this awesome discovery, check out this article:

http://www.ctvnews.ca/sci-tech/another-earth-nasa-hints-at-planetary-discovery-1.2481555?hootPostID=cc8d57b304122b7c20aee26014b0e81f