Paul Hodge

The Andromeda Galaxy, or M31, is an attractive galaxy for astronomers. It is close to us, it is of about the size of our galaxy, it provides some intriguing observational puzzles because the galaxy is nearly edge-on, and many objects can be studied in detail, because they are still sufficiently bright. With the current developments in instrumentation with which increasingly detailed studies of the Andromeda Galaxy can be made, this book provides a solid foundation for the start of new observations. This book is a mine of information about M31. It can be used as a reference by insiders, and at the same time it provides easy access for newcomers to the field.

The Andromeda Galaxy

Over 150 crater-producing events have been identified, and this book describes all 139 sites worldwide at which evidence of the impacts can be seen. They range in age from recent craters formed this century to highly eroded billion-year-old craters. Some are spectacular to visit, such as the Barringer Crater in Arizona, the ring-shaped mountains of Gosses Bluff, Australia, and the huge crater at Ries in Germany. The author has visited many of the sites and his photographs enrich this thorough survey. For each site there is a summary table giving location, size, age and present condition. Maps are included where necessary. Meteorite craters are fascinating to visit, so the descriptions include guidance about access and suggested itineraries for the large structures.

Meteorite Craters and Impact Structures of the Earth

Paul Wrangles

Collins International Primary Maths supports best practice in primary maths teaching, whilst encouraging teacher professionalism and autonomy. A wealth of supporting digital assets are provided for every lesson, including slideshows, animations, tools and games to ensure they are rich, lively and engaging.

Collins International Primary Maths – Workbook 6

An exciting tour of the most spectacular sites in the Solar System, essential reading for armchair adventurers.

Paul Hodge

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