The following is not the breathless exclamation of some 1950s science fiction character...
"Seventy-six types of unregulated micro-organisms have been detected on the International Space Station (ISS). Though many are harmless, some are already capable of causing severe damage. And no one knows how they will mutate in space."
-- RT reporting on the amazing challenges the ISS faces.
It gets even more frightening and somehow entertaining. If you've ever actually read The Andromeda Strain, this will sound eerily familiar:
"Micro-organisms also evolved and became highly aggressive. Cosmonauts reported corroded illuminator glass, holes in the metallic casing of the control panel, and exposed leads, the insulation of which had been eaten away."
Yup. Microbial organisms which we brought into space have evolved into "highly aggressive" glass and metal eating freaks.
Cue all Theramin soundtrack.