110: Euclid's Five Big Questions

It’s always nerve-wracking waiting for a very expensive new space telescope to launch — the whole mission can literally end in a highly explosive blink of an eye. Fortunately for the Euclid mission team, their gleaming new spacecraft left the Earth in one piece, and made its way to L2 to begin it's new job. It’s mission? Oh, just to solve five huge mysteries of the universe, from the nature of dark matter and dark energy, to unravelling the threads of the cosmic web.