Bluffer’s guide to rocket science

Because motorcycle engineering is beautiful

Want to compete in motorsport? There’s plenty to think about safety-wise for what you need for you and your car, as Graham Keilloh explains

Delivery skipper Ben Lowings examines how different popular rudder designs affect handling, and explains how to maintain them

Of the hundreds of thousands of asteroids in our solar system, it is all too feasible that one could strike Earth. If scientists discover this is likely to happen, what are our options for defending ourselves – and who will make the key decisions? Tomas Weber reports

Jake Kavanagh looks at the main buying choices between new and used and considers the temptation of projects

20 amazing answers t o curious