This volume contains the written versions of the lectures given at the 26th course of the renowned Saas-Fee series. The book represents a comprehensive and up-to-date review of the field of galaxy interaction. Nowadays, galaxies are no longer seen as immutable objects: they evolve, interact, merge, blaze, and reshape. Dynamic forces can induce powerful stellar activity able to transform the matter composition and morphology of galaxies. The lectures included in this book aim at a better understanding of these remarkable and fascinating phenomena. Though the book is intended for graduate students and young post-docs in astrophysics, it contains more advanced and original material, as well as historical perspectives, which will be of great interest to experts and astronomy teachers also.

The 186th IAU Symposium came at an exciting and perhaps even historic time for extragalactic astronomy. New spacecraft observations plumbed the depths of the Universe out to redshifts of five, while revealing astounding details of nearby galaxies and AGN at intermediate redshifts. Theoretical ideas on structure formation, together with results from detailed numerical modeling, created a comprehensive framework for modeling the formation of galaxies and the transformation of galaxies by interactions and mergers. All these strands came together at the Symposium, as participants glimpsed a developing synthesis highlighting galactic encounters and their role in the history of the Universe. This volume offers professional astronomers, including PhD students, an overview of the rapidly advancing subject of galaxy interactions at low and high redshifts.

The 186th IAU Symposium came at an exciting and perhaps even historic time for extragalactic astronomy. New spacecraft observations plumbed the depths of the Universe out to redshifts of five, while revealing astounding details of nearby galaxies and AGN at intermediate redshifts. Theoretical ideas on structure formation, together with results from detailed numerical modeling, created a comprehensive framework for modeling the formation of galaxies and the transformation of galaxies by interactions and mergers. All these strands came together at the Symposium, as participants glimpsed a developing synthesis highlighting galactic encounters and their role in the history of the Universe. This volume offers professional astronomers, including PhD students, an overview of the rapidly advancing subject of galaxy interactions at low and high redshifts.

Taking the reader on a journey from discovering a marketable passion to generating an income from it, this book is a practical guide to tackling one of the key questions of our era: how to make a living doing the thing you love. Aimed at all those who want their work to be fun and fulfilling, and who feel they might have a unique gift or message to share with the world, this is an amazingly effective guide to making money doing what you love. It is the only book to take readers through the whole process of creating an income from a passion, identifying which interest they could monetize, choosing a bespoke path and learning how to become an expert in their chosen field. Part 1 explains how to discover a marketable passion with the help of the Dream Job Chart, which guides you in assessing your business ideas, skills and the causes you are passionate about. Once you have clarity on your passion, Part 2 describes the three possible paths to creating an income from it, offering inspiring examples of both famous and everyday people who have successfully followed each path. The Adventurer's Path is for those of a braver disposition and with few family commitments. The Strategist's Path is for those with patience, flexibility and a lower tolerance for risk. The Grinder's Path is for those who feel a need to continue with their present work while also pursuing their dream. Finally, Part 3 explores the four stages to becoming an expert in your chosen field, so that people will pay you for your skill or product. Along the way you will learn: Why bad luck can't stop you the right time to quit your job how to use freelancing or consultancy to help you reach your goal how to make progress with your passion even if you are working full-time what to do if you're over 50 and want to create an income from your passion and much, much more!