If true, the idea would blow past one of physics’ most sacred limits: that parallel versions of reality can never talk to ...

Our universe does host life, but another one might be even better suited for life. Here’s what you’ll learn when you read this story: Researchers are studying how hospitable our universe is to ...

What if there are other universes, just like ours? With an infinite number of Earths? With uncountable versions of you? And what if we don’t have to look too far to find them? Maybe a mirror version ...

Is there evidence for the existence of an enormous number of other universes? In 1987, Steven Weinberg wrote a cute little paper entitled “Anthropic Bound on the Cosmological Constant”. Weinberg was ...

Tinkering at their desks with the mathematics of quantum space and time, physicists have discovered a puzzling conundrum. The arcane rules of quantum theory and gravity let them imagine many different ...