For more than a century, physicists have suspected that the familiar three dimensions of space and one of time might be only a sliver of reality. Extra dimensions, if they exist, would not just be a ...

Below, Halpern shares five key insights from his new book, The Allure of the Multiverse: Extra Dimensions, Other Worlds, and Parallel Universes. Listen to the audio version—read by Halpern himself—in ...

Halpern (Flashes of Creation), a physics professor at Saint Joseph’s University, delves into the multiverse in this thought-provoking if challenging offering. He opens with a superb introduction to ...

Paul Halpern is a professor of physics at Saint Joseph’s University, Pennsylvania and author of books including The Allure of the Multiverse: Extra dimensions, other worlds, and parallel universes.

In 1919, physicist Theodor Kaluza hypothesized that extra dimensions might solve some outstanding problems in physics. And while we haven't found any evidence yet for anything outside our normal ...