The continuing adventures of our Aldebaran heroes Mark and Kim are sent to Betelgeuse to look for survivors of the spacecraft crash that killed 3,000 people seven years earlier. They do find survivors, among them Tazio Menegaz and Colonel Logan, who tell them the colonisers had been divided over whether the Iums (indigenous creatures) are as intelligent as humans. If they are, the humans would have been forced to abandon their colonising enterprise according to UN laws. Kim decides to investigate for herself. This two-volume book includes “The Expedition.”

A wounded Kim has been rescued by Hector, but they are stuck inside the planet’s vast network of caves. Steve and Inge leave the expedition behind to look for them. All of them make their way through multiple, winding tunnels, trying to avoid particularly hostile and dangerous fauna in order to meet up. But the nightmare creatures aren’t the only ones down there. A strange technology reveals itself, and the Iums come and go in large flocks. Soon, an alien yet hauntingly familiar sight will put Kim on the track of Betelgeuse’s hidden secret...

In this conclusion to the second cycle, Kim, Inge, Mai Lan and Hector have been camping for weeks in the wilds of Betelgeuse’s canyons, waiting for Hector’s ankle to heal. As they get ready to head back to the settlement, unaware that Alexa and Mark have finally reached the planet and made contact with the colonists, the mantris sends Kim an invitation! What follows is an extraordinary encounter that will decide the future of Betelgeuse and change the course of Kim’s life forever.

A practical guide to viewing the universe.

David Levy's entertaining, well-researched book is aimed at the amateur enthusiast who likes to learn enjoyably. Beginning with advice on binoculars and telescopes, and how to observe the night sky effectively, the author goes on to describe thoroughly the field of variable star observation, a field in which amateurs have made important contributions. He shows how to interpret variations in light output in terms of the life of a star, from birth through to sometimes violent death. All of the major variable stars are described and classified, as well as other variable objects such as active galaxies, asteroids, comets and the sun. The book also contains a guide to the seasonal night sky. Throughout, practical observations serve to complement the text, producing an exciting, very readable introduction to this fascinating subject.

Milly and Molly had no idea that helping Aunt Maude would be such a challenge.

From supernovae and gamma-ray bursts to the accelerating Universe, this is an exploration of the intellectual threads that lead to some of the most exciting ideas in modern astrophysics and cosmology. This fully updated second edition incorporates new material on binary stars, black holes, gamma-ray bursts, worm-holes, quantum gravity and string theory. It covers the origins of stars and their evolution, the mechanisms responsible for supernovae, and their progeny, neutron stars and black holes. It examines the theoretical ideas behind black holes and their manifestation in observational astronomy and presents neutron stars in all their variety known today. This book also covers the physics of the twentieth century, discussing quantum theory and Einstein's gravity, how these two theories collide, and the prospects for their reconciliation in the twenty-first century. This will be essential reading for undergraduate students in astronomy and astrophysics, and an excellent, accessible introduction for a wider audience.

In this highly accessible book David Levy teaches the reader how variable stars work, and how to observe them.