- published: 03 Jan 2016
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Astronomy is a natural science that deals with the study of celestial objects (such as stars, planets, comets, nebulae, star clusters and galaxies) and phenomena that originate outside the atmosphere of Earth (such as cosmic background radiation). It is concerned with the evolution, physics, chemistry, meteorology, and motion of celestial objects, as well as the formation and development of the universe.
Astronomy is one of the oldest sciences. Prehistoric cultures left behind astronomical artifacts such as the Egyptian monuments, Nubian monuments and Stonehenge, and early civilizations such as the Babylonians, Greeks, Chinese, Indians, Iranians and Maya performed methodical observations of the night sky. However, the invention of the telescope was required before astronomy was able to develop into a modern science. Historically, astronomy has included disciplines as diverse as astrometry, celestial navigation, observational astronomy, the making of calendars, and astrology, but professional astronomy is nowadays often considered to be synonymous with astrophysics.
Dan Brown (born June 22, 1964) is an American author of thriller fiction, best known for the 2003 bestselling novel, The Da Vinci Code. Brown's novels, which are treasure hunts set in a 24-hour time period, feature the recurring themes of cryptography, keys, symbols, codes, and conspiracy theories. His books have been translated into over 40 languages, and as of 2009, sold over 80 million copies. Two of them, The Da Vinci Code and Angels & Demons, have been adapted into feature films. The former opened amid great controversy and poor reviews, while the latter did only slightly better with critics.
Brown's novels that feature the lead character Robert Langdon also include historical themes and Christianity as recurring motifs, and as a result, have generated controversy. Brown states on his website that his books are not anti-Christian, though he is on a 'constant spiritual journey' himself, and says that his book The Da Vinci Code is simply "an entertaining story that promotes spiritual discussion and debate" and suggests that the book may be used "as a positive catalyst for introspection and exploration of our faith."