Last week, we looked at this article on the quest for validation of a multiverse hypothesis. If each universe in the multiverse is physically distinct, they might interact with each other. Those interactions could leave telltale patterns in the cosmic background radiation. (Cosmic background radiation is an energy signal from the early days of the universe; it’s basically our universe’s very first baby photo.) Find those patterns — circular impressions, like you get when two bubbles bump into each other — and you might just have evidence of universes beyond our own.
Now, whenever the multiverse comes up, one of the obvious questions is how to reconcile the assertion that the only reality is what we can hear, see, or touch with the idea that most of reality, by the definition of the multiverse, can never be directly experienced. Or to put it another way, the only evidence we might hope to have of a multiverse is indirect, via influence on the world we can observe — which raises some interesting comparisons. But I’ll leave that particular metaphysical conversation for another place and time. What interested me most about this item was that I had read it before. Not in another scientific publication, mind you, but in that august periodical known asÂ New Avengers from Marvel Comics. [Read more…] about Science in Review: Avengers Annihilate!