This series tells the story of our cosmos through exploring six fundamental discoveries: that of galaxies beyond our own, via probes sent to reveal the remarkably diverse wonders of our Solar System from the fountains of Saturn’s tiny moon Enceladus to Earth’s hellish twin, Venus, of the sudden appearance of interstellar visitors, the strange pulses received by the first radio telescopes and the twinkling of a star that misbehaved, and the revelation of detecting the oldest light of all. Together, these discoveries take us to the forefront of modern astronomy, and to the state-of-the-art in our understanding of the cosmos.