It goes by many names: the hypercube, the 8-cell, or the octochoron. It is represented by many shapes; a small cube inside a larger cube, two cubes connected by a bridge, a cube with slightly skewed ...

Both the novel “A Wrinkle in Time” and the Disney movie based on it are all about traveling vast distances to explore the universe. There aren’t any sleek, futuristic spaceships or rockets in the ...