Warp Drive Unstable, But Cosmology Offers Hope
A warp drive creates a bubble around the ship, compressing space in front and stretching it behind. This is a clever way to bypass the speed-of-light limit without violating Einstein's theory.
Curved Cosmos: The Secret Life of the Local Universe
The universe abhors monotony. A century ago, Edwin Hubble and Georges Lemaître gave us an elegant picture: an expanding cosmos, smooth as the surface of an inflated balloon.