Nikodem Janusz Popławski (born March 1, 1975) is a Polish theoretical physicist, most widely noted for the hypothesis that every black hole could be a doorway to another universe and that the universe was formed within a black hole which itself exists in a larger universe. This hypothesis was listed by National Geographic and Science magazines among their top ten discoveries of 2010. Popławski appeared in an episode of the TV show Through the Wormhole titled "Are There Parallel Universes?" and in an episode of the Discovery Channel show Curiosity titled "Is There a Parallel Universe?", which were hosted by Morgan Freeman and aired in 2011. He was named by Forbes magazine in 2015 as one of five scientists in the world most likely to become the next Albert Einstein.
