Cometary Panspermia — Overcoming Cultural Constraints

Abstract

The importance of distinguishing between hypotheses that are verified by a vast number of predictions and have not been falsified, and conjectures without any compelling evidence is of paramount importance for science educators to keep in mind. This article describes the trajectory of one such hypothesis. The concept of cometary panspermia has been developed over a period of four decades and evidence for it has straddled many scientific disciplines from astronomy, to geology, biology and epidemiology. With an ever-increasing number of predictions of this theory being verified, the question as to why it has not entered mainstream thinking is an intriguing one. I suggest that this resistance is connected with sociological considerations, including a deep cultural hostility to theories that appear to have a foreign or “alien” provenance.