Scuba divers and astronauts may explore opposite worlds, but they share more in common than most people realise. From neutral buoyancy training to life-support systems and pressure risks, here’s why the comparison is not as far-fetched as it sounds.

Thinking about learning to scuba dive? This beginner-friendly guide explains what certification involves, whether you need to be a strong swimmer, how safe diving really is, and what to expect from your first course.