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In the ten years preceding publication, the known solar system more than doubled in size. For the first time in almost two centuries an entirely new population of planetary objects was found. This 'Kuiper Belt' of minor planets beyond Neptune revolutionised our understanding of the solar system's formation and finally explained the origin of the enigmatic outer planet Pluto. This is the fascinating story of how theoretical physicists decided that there must be a population of unknown bodies beyond Neptune and how a small band of astronomers set out to find them. What they discovered was a family of ancient planetesimals whose orbits and physical properties were far more complicated than anyone expected. We follow the story of this discovery, and see how astronomers, theoretical physicists and one incredibly dedicated amateur observer came together to explore the frozen boundary of the solar system.
For five decades after its discovery in 1930, the planet Pluto remained an enigma. However, several events during the last two decades have helped to lift the veil of mystery surrounding the ninth planet. The discovery of its satellite, Charon, in 1978 permitted occultation observations that allowed scientists to determine the size of both bodies. Astronomers also detected the presence of an atmosphere, and the Hubble Space Telescope provided views in unprecedented detail. In addition to these two fortuitous events, advances in telescopic instrumentation and computational methods led to exciting observational and theoretical discoveries. This new Space Sciences Series volume focuses on the s...
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OLTRETERRA: SOPRAVVISSUTI - COLLANA VOLUME I - EDIZIONE 1.02 - Gennaio 2020 Genere: Fantascienza Post Apocalittica, Survivor, Post Nucleare, Thriller Politico, Horror. Versione 3.9 - Stati Uniti d'America, anno 2027.L'interminabile crisi che ha sconvolto l'economia mondiale ha raggiunto il culmine. In Cina, una rivoluzione operaia, guidata da un nuovo e dispotico dittatore, crepa le fondamenta della produzione industriale scatenando un devastante conflitto nucleare e virale/batteriologico. L'escalation bellica porta alla distruzione della civiltà umana come la conosciamo.Eppure, tra le macerie e l'aria intrisa di radiazioni, negli Stati Uniti d'America, qualcuno sembra approfittarne per pre...
“E un giorno mi svegliai” è un fantasy. Il personaggio principale del libro, Salvatore CUZZUPERI, è un impiegato residente nella provincia di Palermo che rimane vittima di un’esperienza di abduction. Il CUZZUPERI vivrà l’esperienza paranormale del suo rapimento da parte degli alieni lontano anni luce dal pianeta Terra e si troverà coinvolto nell’aspra e millenaria lotta tra gli Anunnaki, i Malachim loro sudditi, e i Rettiliani, degli alieni aventi la forma fisica di una lucertola evoluta. I Rettiliani, scoprirà il CUZZUPERI, cercano di impossessarsi degli esseri umani perché dotati di Anima, questa forma di energia ancestrale e divina, riconducibile al Dio Creatore dell’Universo, in grado di ridare la vita ad alcune specie aliene dotate di un DNA simile a quello dell’uomo, fra cui gli stessi Rettiliani e gli Anunnaki. Il CUZZUPERI perderà pian piano la sua umanità divenendo un Igigi ammesso a cibarsi delle conoscenze degli “antichi dèi”, ed infine, accolto come un nuovo membro della “fratellanza cosmica”.
A complete record of the formal organisational and administrative proceedings of the XXVII General Assembly of the International Astronomical Union.
The Essential Cosmic Perspective, Third Edition , built from the ground up on our new understanding of the universe, has been revised and streamlined to make it easier for readers to navigate and learn from. Chapter openers, headers, callouts, and chapter summaries make learning goals more explicit and tie together important concepts. Key content has been consolidated and reorganized, with a new emphasis on a planet-by-planet approach. The material is linked to everyday life, helping readers develop an appreciation for the scientific method and see how physics and astronomy are foundations for understanding their world. Supplementing the book is an expanded and easy-to-use media package. Developing Perspective, Key Concepts for Astronomy, Learning From Other Worlds, Stars, Galaxies and Beyond, Life on Earth and Beyond. For college instructors and students, or anyone interested in issues relating to astronomy.