Terra-Freeze

Terra-Freeze is a method of turning planets into mobilized star cruisers by Lord Slug and his minions.

Overview
Lord Slug's spaceship launches specialized pods into the atmosphere and releases black clouds that freeze the planet. It is unknown exactly how the process works, but appears to take days at a time.

During the events of Dragon Ball Z: Lord Slug, the Terra-Freezing pod launched on Earth is eventually destroyed byGoku's Spirit Bomb.