‘We’re trying to find the shape of space’: scientists wonder if the universe is like a doughnut

Rather than stretching to infinity and beyond, the universe may have a topology that can eventually be mapped.

We may be living in a doughnut. It sounds like Homer Simpson’s fever dream, but that could be the shape of the entire universe – to be exact, a hyperdimensional doughnut that mathematicians call a 3-torus. READ MORE from The Guardian