Universe's Shape: Doughnut, Not Pancake?
Originally Published 2 years ago — by Livescience.com
New research suggests that the universe could have a more complicated shape, like a giant doughnut, despite all evidence suggesting it's flat. The study finds that strange patterns found in echoes of the Big Bang could be explained by a universe with a more complicated topology, and astronomers have not fully tested the universe's flatness. While most observations suggest the universe is flat, there are 18 possible geometrically flat, 3D topologies, and a universe with a complicated topology could explain some of the anomalies in the cosmic microwave background.
