Searching for distant worlds -- The visionaries -- Doppler wobble -- Chasing shadows -- Seeing is believing -- Calling Pandora -- The next wave -- Milky Way census -- Habitability and the exoplanet zoo -- Gas giants -- Ice giants -- Water worlds -- Earth clones -- Exomoons -- Rogue planets -- The search for life beyond Earth -- The solar system -- Sniffing biosignatures -- Send in the nanobots -- ET phone home -- Energy footprints -- The Drake equation -- Fermi's question -- The promise of space exploration -- Habitable Earth -- Space boom -- How to get to space -- Going to the moon and Mars -- Mining asteroids -- Living beyond Earth.