Danger from the skies

David Bryant, BSc, Cert Ed has been described as a 'renaissance man': wildlife photographer, teacher, lecturer, ex-naval officer, rock guitarist, published artist, author and the UK's only full-time professional meteorite dealer, he has had what could be considered a full life! This is reflected in the breadth of content of his three books, which range from the UFO phenomenon, the Apollo lunar missions, ghosts, religious apparitions to evolution, planetary astronomy and the formation of the Universe! If there's a mystery out there, David will investigate it!
Are catastrophic impacts upon the Earth's surface the major driving-force of Evolution?
Cuvier vs Darwin: do we need to revise our understanding of the Origin of Species?
Are asteroids really a significant threat to life on Earth? Or is their role in extinction over-stated?
Is mankind's nemesis lurking unsuspected far beyond the orbits of Neptune and Pluto?
When can we expect another major extinction event and what can we do to prevent it?