The scale of the cosmos can be baffling, with distances so vast and timescales to long that it's easy to dismiss them as being completely divorced from our everyday life. Dr Marek Kukula, Public Astronomer at the Royal Observatory, Greenwich, shows you the myriad ways we are intrinsically connected to the rest of the universe and how everything on Earth - from the ground beneath our feet to the technology in our pockets - has origins in space. The stars are closer than you think!