Mission Of Gravity

Mesklin is a vast, inhospitable, disc-shaped planet, so cold that its oceans are liquid methane and its snows are frozen ammonia. It is a world spinning dizzyingly, a world where gravity can be a crushing 700 times greater than Earth''s, a world too hostile for human explorers.

But the planet holds secrets of inestimable value, and an unmanned probe that has crashed close to one of its poles must ...