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Astronomy is a natural science that studies celestial objects and the phenomena that occur in the cosmos. It uses mathematics, physics, and chemistry in order to explain their origin and their overall evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, meteoroids, asteroids, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Egyptians, Babylonians, Greeks, Indians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars. Professional astronomy is split into observational and theoretical branches. Observational astronomy is focused on acquiring data from observations of astronomical objects. This data is then analyzed using basic principles of physics. Theoretical astronomy is oriented toward the development of computer or analytical models to describe astronomical objects and phenomena. These two fields complement each other. Theoretical astronomy seeks to explain observational results and observations are used to confirm theoretical results. Astronomy is one of the few sciences in which amateurs play an active role. This is especially true for the discovery and observation of transient events. Amateur astronomers have helped with many important discoveries, such as finding new comets. Source: Wikipedia (en)
Works about astronomy 100
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Per Lastenrad durch die Galaxis
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In Light-Years There's No Hurry
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Astronomy: The Unknown
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4th Planetary Data Workshop
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Second Planetary Data Workshop
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How It Began
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The Living Cosmos
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The 4 Percent Universe
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A Question and Answer Guide to Astronomy
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The Eerie Silence
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Talking About Life
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The 50 Most Extreme Places in Our Solar System
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The Pluto Files
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Death from the Skies
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Vi racconto l'astronomia
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Dicionário Enciclopédico de Astronomia e Astronáutica
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The wonders of space
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NightWatch: A Practical Guide to Viewing the Universe
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Studies in inhomogeneous cosmological models
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Star Trek: Star Charts
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Astronomie et astrophysique
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Pale Blue Dot
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Horizons: Exploring the Universe
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Isaac Asimov's Guide to Earth and Space
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The Big Splash
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Ancient Astronomy
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Encyklopédia astronómie
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Practical Astronomy with your Calculator
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Contemporary astronomy / Jay M. Pasachoff
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Exploration of the universe / George O. Abell
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The Sleepwalkers
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Earth, moon and planets / Fred L. Whipple
Subject - wd:Q333