In Neil deGrasse Tyson’s delightful journey through the cosmos, his fictional character Merlin responds to popular questions asked by adults and children alike. Merlin, a timeless visitor from Planet Omniscia in the Andromeda Galaxy, has observed first-hand many of the major scientific events of Earth’s history. Merlin’s friends include the most important scientific figures and explorers of all time – da Vinci, Magellan, Newton, Einstein and Hubble. While Merlin occasionally recounts playful conversations with these luminaries, all questions are answered with authentic science, infused with wit, wisdom, and an occasional rhyme.