Deep impact

If a huge meteorite slammed into America’s Chesapeake Bay today, it would
wipe out life on the Atlantic Coast. But as C. Wylie Poag relates in
Chesapeake Invader, his fascinating account of finding the
80-kilometre-wide crater created by such an impact 35 million years ago, it
didn’t seem to have any lasting effect on life at the time. Nevertheless, it
does make you worry . . . Published by Princeton University Press,
£15.95/$24.95, ISBN 0691009198.