The Moon is not just a static piece of cosmic matter in our night sky, but a dynamic living being. Throughout her journey around the Earth which takes about 29.5 days she shows us her different faces, growing from a silver sliver in the sky to an awe-inspiring illuminated sphere, before returning to darkness again. She changes colour and moves through a variety of star constellations reflecting the energies at play each day. The Moon gives us a map to a cyclical way of living; the blueprint for a life that breathes in harmony with the rhythm of the natural world around us. She teaches us about the importance of embracing quiet and reflective times as much as celebrating the times we experience life in its fullest expression. She informs us when to plant the seeds of our dreams and when to take stock and harvest what we have been growing. What will you discover about yourself when you tune into the moon?

Alien Skies: A Travelogue of the Universe gives readers the opportunity to travel through the universe, visiting a series of celestial destinations carefully chosen to span the extraordinary limits of space and time that bound our amazing cosmos. The destinations in Alien Skies reveal the unusual skies seen from throughout the solar system, nearby stars, nebulae, and star clusters, and during a series of voyages exploring the structure and content of our home galaxy. The itinerary includes nearby 'normal' galaxies, exotic active galaxies, as well as galaxy groups, clusters and cosmic voids. The final destinations of the journey traverse space and time to view the evolution of galaxies and cosmic structure, and of the universe as a whole. Alien Skies provides a broad, factual overview of modern astronomy, while instilling interest and enthusiasm of how science reveals the wonders of our universe. This book can serve as the text for introductory courses aimed at non-science majors or as background for courses geared to astronomy and astrophysics majors. It is also suitable for advanced courses at the high school level.

Structure and Evolution of Single Stars: An introduction is intended for upper-level undergraduates and beginning graduates with a background in physics. Following a brief overview of the background observational material, the basic equations describing the structure and evolution of single stars are derived. The relevant physical processes, which include the equation of state, opacity, nuclear reactions and neutrino losses are then reviewed. Subsequent chapters describe the evolution of low-mass stars from formation to the final white dwarf phase. The final chapter deals with the evolution of massive stars.

"And it was then that all these kinds of things thus established received their shapes from the Ordering One, through the action of Ideas of Numbers" (Plato: in Timaeus). Indeed, the Hamilton's 'Principle of Least Action' is a mathematical discrimination between inorganic and organic systems. The geometrical progression of organic life has the property of producing by simple addition, a succession of numbers or similar shapes making the homothetic (gnomonic) growth-work by 'imbibition' (from inside outwards). Whereas, inorganic matters (crystals, snowflakes, rocks) grow by 'agglutination' (from outside inwards) and final distribution of energy to cause no further motion. While in inorganic growth (hexagonal), the Principle of Least Actions tends to save energy, in organic or gnomonic growth (pentagonal) there is a tendency to save the substance. Involving the avid travelers "father jaguar and the cub," this tourbook of the "snow gallery" mathematically and geometrically analyzes the deposition, aggregation, capacitance, and velocity of the snowflake formation, vis a vis the hexagonal (honeycomb) tendency. When the tour is over, the cub classifies his most favorite snowflakes, giving them names.