The Problem With Navigating in Space

Astro physicist ethan sigal explains why the problem with navigating in space is that the magnetic field flips irregularly every few hundred or few thousand light years there's no central object like the black hole at the centre of our galaxy. So how do space craft know where they are and which way to go? The answer is both simple and very clever. They use special ized heat senses to detect the position of the sun and use that to guide their way. Once again, our time is up. Good bye forne baby. Sixs from the b b c - i said it was b ury gegarian. I've got to be right, haven't i? That's