Product Description: A young scientist's guide to rocky asteroids, including how they interact with other elements in the universe and emphasizing how questions and observations can lead to discovery.

Product Description: This visually stunning guide gives an up-close look at some of the more elusive objects in space. Definitions of better-known objects, such as comets, as well as lesser-known objects, such as centaurs and trojans, give a basic understanding of space objects and the history of how they were discovered...read more

Product Description: Its the plot of many sci-fi movies: An asteroid is hurtling toward Earth! But is this really a danger we face? And what exactly are asteroids? This book answers these and many more questions about the millions of asteroids in our solar system and the large orbiting belt in which most are found...read more

Product Description: Covering space explorations and understandings of the stars and planets, the 'Discovering Space' series explains past beliefs and shows how technology has enabled us to advance our knowledge.

Product Description: Its happened in disaster movies countless times, and readers will discover if there really is a chance that massive pieces of rock could collide with Earth. This fascinating volume explores the asteroids that populate our universe, both near and far...read more

Product Description: What are comets and asteroids like, and could we ever visit one? Taking the form of an imaginary trip, this book explores the science and history of these objects, looking at recent studies and possibilities for the future.

This book provides an update of those topics that at present constitute the main controversies in the field of clinical radiobiology. The various chapters were carefully prepared by the most prominent scientists in the corresponding area of work. A critical appraisal is given of the clinical results obtained so far by the application of hyperfractionation and accelerated fractionation. In addition, the possibilities and limitations of the methods for evaluation of nonrandomized clinical studies to derive time-dose relationships for human tumors, the use of the BUdR technique for determination of tumor proliferation characteristics, the validity of the linear-quadratic model at low doses per fraction, the predictive value of SF2 for the outcome of radiotherapy, and methods for the identification of hypoxic cells are critically reviewed.

On a dark night as you watch the sky with your friends, a rock with a fiery tail shoots across the sky. A comet! Asteroids and comets hurtle through space, sometimes a little too close to Earth. But did you know that they are linked to life on this planet? From the asteroid Ceres to Halleys comet, blast into space and enter the lonely existence of asteroids and comets.

Product Description: ''Provides scientific information about asteroids, comets, and meteoroids''--Provided by publisher.Title: Comets, Asteroids, and MeteoroidsAuthor: Reilly, CarmelPublisher: Marshall Cavendish CorpPublication Date: 2011/09/01Number of Pages: 32Binding Type: LIBRARYLibrary of Congress: 201004401...read more

Product Description: They're leftover rocks from when the planets formed. And they hold clues to how the solar system began. Get up close to the asteroids, comets, and meteoroids that orbit our solar system.

Product Description: They're leftover rocks from when the planets formed. And they hold clues to how the solar system began. Get up close to the asteroids, comets, and meteoroids that orbit our solar system.

Product Description: Our solar system is full of wonders, and this book tells about seven wonderous objects that have traveled through it. They are: Ceres, the largest asteroid; Ganymede, a large Earth-grazing (but misses) asteroid; the famous Halley's comet (an ice ball whose history goes back to 1066); the Borealis Basin of Mars, (a giant crater formed by an ancient asteroid impact); the magic shooting stars of the Perseid Meteor Shower; the Kuiper Belt, home of comets; and the mysteries of Pluto (planet or asteroid?)...read more

Product Description: What are stars made of? Where do they come from? What surrounds them in our Solar System? Learn all about the planets and stars with this dazzling series from QED.

Product Description: Covering space explorations and understandings of the stars and planets, the 'Discovering Space' series explains past beliefs and shows how technology has enabled us to advance our knowledge.