http://www.sciencealert.com/a-cosmologist-says-he-s-found-possible-signs-of-a-parallel-universe
http://www.sciencealert.com/here-s-how-you-can-figure-out-if-you-re-living-in-a-multiverse
http://www.higherperspectives.com/parallel-universe-1445719717.html
http://phys.org/news/2015-11-cosmologist-strange-evidence-parallel-universe.html
http://science.howstuffworks.com/science-vs-myth/everyday-myths/parallel-universe.htm