A French astronomer is a scientist from France who studies celestial objects, space, and the universe. They observe stars, planets, and galaxies to understand their properties and behaviors. Notable French astronomers include Pierre-Simon Laplace, who contributed to celestial mechanics, and Henri Poincaré, known for his work in dynamical systems. French astronomers often work with advanced telescopes and technology to gather data. They may also collaborate with international space agencies like NASA or ESA (European Space Agency) to explore space missions. Their research helps expand our knowledge of the cosmos and the fundamental laws of physics.