Right at the brink of a black hole, gravity twists space and time so violently that ordinary physics starts to fall apart.

Cutting-edge simulations show that Enceladus’ plumes are losing 20–40% less mass than earlier estimates suggested. The new models provide sharper insights into subsurface conditions that future ...

A supercomputer is a computer of such implausible size and power that it's in a whole different league. During the Cold War ...