Scientist Alexander Fleming discovered the mold could kill bacteria. — -- A mold sample may seem like an unlikely prize, but a sample of penicillin mold pulled in more than $14,000 when it was ...

Sometimes the most groundbreaking innovations emerge from spilled chemicals, forgotten lab samples, or misplaced ingredients.

LONDON -- A medallion containing some of the original mold involved in the discovery of penicillin is expected to fetch up to $50,000 when it goes up for auction later this month. The medallion was ...

And now a page from our "Sunday Morning" Almanac: September 28th, 1928, 86 years ago today . . . a day that changed medicine completely by accident. It happened in the laboratory of Alexander Fleming, ...