Meteorites

What are these strange rocks that fall from the sky? Where do they come from? Are they a threat? What are they made of? How common are they? This comprehensive ... » 

What are these strange rocks that fall from the sky? Where do they come from? Are they a threat? What are they made of? How common are they? This comprehensive guide to meteorites has been written by a team of experts, with the help of over 200 colour photographs, diagrams and graphs. «