About the Book
This book consists of articles from Wikia or other free sources online. Pages: 32. Chapters: Astronomy stubs, Life away from Earth, Planets, Big Bang, Big Bang Theory, Black Hole, Brown dwarf, Carbon Planet, Ceres, Creationism and the Universe, Earth, Exoplanet, Extraterrestrial aliens, Galactic civilizations, Galaxy, Gas giant, Geocentric theory, Gliese 581 and its Planets, Godspeed, Gravity, Habitable planet, Heliocentric theory, Hot Jupiter, How Conservatives see Galaxies, Intelligent aliens, Invitation to ETI, Kuiper belt, Light year, List of nearby stars, Lunar Landing Hoax, Mars, Mercury, Milky Way Galaxy, Moon, Multiverse, Neptune, Neutron star, Ocean Planet, Planet, Planetary systems, Pluto, Proxima Centauri, Red dwarf, Red giant, Saturn, SETI, Solar System, Star, Stephen Hawking, Sun, Supernova, Terraforming, Universe, Uranus, Venus, Alpha Centauri, Brown dwarf, Ceres, Extraterrestrial aliens, Kuiper belt, Mars, Pluto, Terraforming, Astronomy, Ceres, Exoplanet, Extraterrestrial aliens, Galactic civilizations, Gliese 581 and its Planets, Hot Jupiter, Intelligent aliens, Invitation to ETI, Mars, Multiverse, Planet, Planetary systems, Proxima Centauri, Red dwarf, SETI, Carbon Planet, Earth, Exoplanet, Gas giant, Gliese 581 and its Planets, Hot Jupiter, Mars, Mercury, Neptune, Ocean Planet, Planet, Saturn, Uranus, Venus. Excerpt: An astronomical unit or AU is defined as the distance between the Earth and the Sun, approximately 150 million kilometers or 93 million miles. Astronomy is the Science that studies the stars, planets, galaxies and everything else in the universe. Astronomy deals with objects some of which are incredibly large, far larger than the whole Earth. Astronomy deals with forces that are incredibly powerful like a Supernova explosion. Astronomy deals with incredible distances. Astronomy also deals with incredibly small things like fundamental particles, atoms and molecules. Astronomy tells us why we are here and where we came from. Scientific.
