Cosmic Tribune

Gravitational tow truck for world-shattering asteroids

Gravitational tow truck for world-shattering asteroids

How would you change the course of an Earth-threatening asteroid? One possibility – a massive spacecraft that uses gravity as a towline – is illustrated in this artist’s vision (Dan Durda (FIAAA, B612 Foundation)) of a gravitational tractor in action. In the hypothetical scenario worked out in 2005 by Edward Lu and Stanley Love at […]