Do you want to access to this and other private contents?
Log in if you are a subscriber or click here to request service
ASTEROID IMPACT CRATER RE-EXAMINED FOR CLUES TO DINOSAURS' DEMISE
SAN FRANCISCO, U.S.A., The rock and dust kicked up by an asteroid impact 65 million years ago were not enough to kill the dinosaurs, according to researchers, but the debris may have sparked a deadly global chemical reaction in the atmosphere. New studies show the Chicxulub impact crater on the coast of Mexico's Yucatan Peninsula is smaller than once thought, making dinosaur extinction difficult to...
AVIONEWS - World Aeronautical Press Agency