Musing -- The universe -- Christian Doppler and his effect -- Measuring distances in the universe -- Edwin Hubble's expanding universe -- A weird and wonderful universe -- Matter and the universe -- The nature of matter -- The big-bang hypothesis -- How matter can clump together -- The universe develops structure -- Stars, stellar clusters and galaxies -- The first stars are born, live and die -- The formation of globular clusters and galaxies -- Making the sun and similar stories -- The solar system -- Understanding the nature of the solar system -- Introducing the planets -- Satellites galore -- 'Vermin of the sky' and other small bodies -- Planets galore -- Forming the solar system -- Making planets -- Shrinking orbits and the survival of planetary systems -- Now satellites form -- What can be learnt from meteorites? -- A little-bang theory and the terrestrial planets -- The moon, its structure and history -- The very small planets, Mars and Mercury -- Smaller bodies of the solar system -- The origin of isotopic anomalies in meteorites -- Life on Earth -- The Earth settles down, more-or-less -- What is life? -- Forms of life -- Nineteenth century genetics, the survival of the fittest -- Twentieth century genetics, the alphabets of life -- Life begins on Earth -- The restless Earth -- Oxygen, ozone and life -- The evolution of life, from Archaea to early mammals -- Early mammals to man -- Man and the Earth -- Musing again