(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Curious Kids is a series for children of all ages. If you have a question you’d like ...

Your articles on “How to think about…” were all fascinating. But the piece on the multiverse claimed that it is not a hypothesis but is “forced upon us” (30 June, p 29). There is no evidence for a ...

Add Yahoo as a preferred source to see more of our stories on Google. The idea of a multiverse – a hypothetical collection of all possible universes – is one that science fiction fans love to explore.