Science fiction, science fact: Are there parallel universes?
Are there parallel universes? In the latest online poll of our Science fiction, science fact project you told us that you'd like an answer to this question. So we spoke to physicists Adrian Kent and David Wallace to find out more. We also bring you an article from FQXi who are our partners on this project. Happy reading!
And don't forget to vote for the next question you'd like to have answered!