Astronomie, or astronomy, is the scientific study of celestial objects, space, and the universe as a whole. It involves observing and understanding phenomena such as stars, planets, comets, galaxies, and the cosmos. Astronomers utilize various tools, including telescopes and satellites, to collect data about the positions, movements, and properties of these celestial bodies.
Astronomy encompasses several subfields, including observational astronomy, which focuses on the actual observation of celestial events, and theoretical astronomy, which involves mathematical models to explain astronomical phenomena. The findings in astronomy contribute to our understanding of fundamental questions about the origin, evolution, and structure of the universe, including concepts like cosmology, the study of the universe’s large-scale properties, and astrophysics, which applies physics to understand how stars and galaxies form, evolve, and end their life cycles.
Astronomy is one of the oldest sciences and has evolved significantly from ancient observational practices to modern scientific techniques, playing a crucial role in the advancement of knowledge about the universe and our place within it.
Asteroid 2024 YR4, nový asteroid, přitáhl pozornost astronomů na konci roku 2024 díky své blízkosti k Zemi. Existuje 2,3% šance na kolizi, což odpovídá 23 simulacím blízkého průletu na tisíc,…