Explosive asteroids with diameters of 100 feet or more are believed to strike the earth about every 30 years, with impacts equal to the energy released by hydrogen bombs. Many scientists believe that even larger asteroids, as wide as five miles,…
This is a definitive, masterly history and synthesis of all that has been said (by theologians and scientists) and is known (to science) about the question, How old is the Earth? It explains in a simple and straightforward way the evidence and logic…
This illustrated volume reviews the wealth of information that has been generated by satellite and ground-based observations of the aurora. Opening with a broad overview of why we should continue to be interested by a phenomenon which occurs in the…
The highly successful Clementine mission gave scientists their first global look at the Moon. Based on information gathered from this mission combined with data from recent missions, this unique atlas contains 144 maps covering the entire lunar…
Explanation of the complex motion of the Moon. In this book, you will not find a long series of advanced mathematical equations. There are no theory or assumptions. Instead, you will find many easy to understand graphs based on the latest…
Examines evidence that rising levels of carbon dioxide in the atmosphere may be changing the earth's climate. Also discusses how and why scientists study climatic changes.
Long regarded as the finest photographic lunar atlas available, The Hatfield Lunar Atlas is a model of accuracy and clarity. This new version updates some of the maps, names and technical data, but uses Commander Henry Hatfield''s original - and…
Bringing together a wealth of information from many sources, including some material never before published, this atlas is a comprehensive reference on lunar exploration. It tells the story of every spacecraft mission to the Moon since the dawn of…