June 2021 was the 41st anniversary to the month of the publication of  the article ‘Extraterrestrial cause for the Cretaceous-Tertiary Extinction’ (main authors Louis and Walter Alvarez) in the Journal Science (1980) 208 (448) pages 1095-1108 which, in effect, proposed ...

Can the theory, postulate or supposition that the asteroid/comet/bolide collision be classified as a scientific hypothesis?