Hundred thousand years of astronomy: Little history: from the first astronomers to Aristotle -- First astronomical calculations -- More Greeks -- From Ptolemy to Copernicus -- Rock in the pool: Copernicus -- Kepler and Brahe: the mathematical proofs -- Galileo, Paladin of the revolution -- Newton and gravitation -- After Newton: Kirchhoff and the chemistry of the stars -- HR diagram: towards the future -- From the Earth to the Moon: Blue planet -- Lithosphere -- Hydrosphere -- Biosphere -- Atmosphere -- Earth in space -- Moon and the Earth-Moon system -- Lunar geology -- Movements and lunar phenomena -- Exploration and conquest -- Apollo expeditions -- Observing the heavens: Orienting oneself in space -- Observing celestial objects -- Observation sites -- Pattern of stars -- Observing the heavens -- More famous constellations -- Zodiac -- Observing the moon -- Observing the eclipses -- Instruments and space expeditions -- Exploration of the solar system -- Sun and its planets: Our star -- Structure and phenomena -- Activity of the sun -- From Mercury to Pluto -- Mercury -- Venus -- Mars -- Asteroid belt -- Jupiter -- Saturn -- Uranus -- Neptune -- Pluto and Charon -- Comets, meteorites and interstellar masses -- Hypothesis on the origins of the solar system -- Stars, galaxies and beyond: Universe of suns -- Luminosity and distance -- Stellar spectra -- Evolution of a star -- Binary and variable stars -- Milky way and beyond -- Structure -- Close to the galaxy -- Beyond the Milky Way -- Suggestions -- Explanatory bibliography -- Glossary -- Analytical index.