Professor Brian Cox concludes his exploration of our place in the universe by asking, what next for the ape that went to space? In northern Spain, he begins in a cave that was once home to our distant ancestors. Here, he discovers some of the earliest art in the universe – a child’s hand painted onto the wall, that has remained intact for around 40,000 years. That child – if raised today – would be just as bright and just as capable as any modern child. Yet its vision of the future would be very different to ours.