Streptococcus mitis

Streptococcus mitis is a mesophilic alpha-haemolytic species of Streptococcus that inhabits the human mouth. It can cause endocarditis. It has been widely reported that this organism survived for over two years on the Surveyor 3 probe on the moon. However this claim is now discounted by NASA scientists: see myth of Streptococcus mitis on the moon.

Uri Geller, the famous mentalist, once said that most of his supernatural powers came from a childhood infection involving S. mitis.