The universe’s expansion rate was supposed to be a solved problem, yet the latest high precision map of the early cosmos has pushed one of modern astronomy’s sharpest conflicts back to center stage.

• There are three possibilities for the curvature of the universe: space can be flat, spherical or hyperbolic • The geometry of the universe depends on its curvature and also on its topology, which ...

A multiconnected topology translates into the fact that any object in space may possess several copies of itself in the observable Universe. For an extended object like the region of emission of the ...

The earliest acoustic vibrations in the cosmos weren’t exactly sound – they travelled at half the speed of light and there ...