In your own words, describe what you believed to be the greatest contribution of science that effected philosophy. Why?

Please answer the following question:
In your own words, describe what you believed to be the greatest contribution of science that effected philosophy. Why?
You will be graded on the following:
Substantive response to the initial question (approximately 50 words)
At least 1 (substantive) additional post to a fellow student (approximately 25 words)
Errors in spelling/grammar

Note:
You will not be able to see any posts by fellow students until YOU post your response to the initial question.