Hijacking the box office crown from “Captain Phillips,” Warner Bros.’ 3D space phenom “Gravity” is expected to land in the $30 million range this weekend, beating Sony’s adult-targeted wide release, ...

Bumper car-like interactions at the edges of our solar system -- and not a mysterious ninth planet -- may explain the dynamics of strange bodies called 'detached objects,' according to a new study.

The Tōhoku earthquake that rattled Japan on 11 March changed Earth’s gravitational field enough to affect the orbits of satellites. The satellites’ altered courses suggest that the earthquake was ...