Professor Arnold Hanslmeier is an astrophysicist at the Institute of Physics at the University of Graz. In addition to more than 400 scientific publications and several reference books, he also enjoys disseminating the fascinating findings of modern astrophysics in an understandable way. He lectures at the University of Graz and is a visiting professor at the Universities of Vienna, Innsbruck, Toulouse, La Laguna, Tenerife and the Kiepenheuer Institute in Freiburg. Due to his special didactic abilities to present complicated things in a simple and clear way, he is an internationally sought-after speaker.

• 1 Forces that determine the universe.- 2 The Big Bang - How it all began.- 3 The world of planets.- 4 Dwarf planets and small bodies.- 5 The mechanics of the sky.- 6 The sun - the star we live on.- 7 Stars - Formation, structure and development.- 8 The world of galaxies.- 9 Life in the universe ?.

Professor Arnold Hanslmeier is an astrophysicist at the Institute of Physics at the University of Graz. In addition to more than 400 scientific publications and several reference books, he also enjoys disseminating the fascinating findings of modern astrophysics in an understandable way. He lectures at the University of Graz and is a visiting professor at the Universities of Vienna, Innsbruck, Toulouse, La Laguna, Tenerife and the Kiepenheuer Institute in Freiburg. Due to his special didactic abilities to present complicated things in a simple and clear way, he is an internationally sought-after speaker.

• 1 Forces that determine the universe.- 2 The Big Bang - How it all began.- 3 The world of planets.- 4 Dwarf planets and small bodies.- 5 The mechanics of the sky.- 6 The sun - the star we live on.- 7 Stars - Formation, structure and development.- 8 The world of galaxies.- 9 Life in the universe ?.

Professor Arnold Hanslmeier is an astrophysicist at the Institute of Physics at the University of Graz. In addition to more than 400 scientific publications and several reference books, he also enjoys disseminating the fascinating findings of modern astrophysics in an understandable way. He lectures at the University of Graz and is a visiting professor at the Universities of Vienna, Innsbruck, Toulouse, La Laguna, Tenerife and the Kiepenheuer Institute in Freiburg. Due to his special didactic abilities to present complicated things in a simple and clear way, he is an internationally sought-after speaker.

• 1 Forces that determine the universe.- 2 The Big Bang - How it all began.- 3 The world of planets.- 4 Dwarf planets and small bodies.- 5 The mechanics of the sky.- 6 The sun - the star we live on.- 7 Stars - Formation, structure and development.- 8 The world of galaxies.- 9 Life in the universe ?.