so make sure you practice in a familiar area before setting out into the wild. The post How to use a compass for navigation when GPS fails appeared first on The Manual.

GYRO COMPASS - Roger Revelle carries two Sperry gyro compasses. In addition to these, the science acquisition primarily uses Kongsberg Seapath 330+ and a Phins Gen. III MRUs. Several electronic ...

But what happens when you take a compass beyond Earth - into orbit, to the Moon, to other planets, or even beyond our solar ...