This raises hopes of finding bacteria in the recently discovered frozen seas on Mars.
They found bacteria in all of them, but the towels made from recycled fibers were the most heavily contaminated.
Finding bacteria on Mars would make the latter much more plausible.
This is a protein that helps your body's immune system find and destroy bacteria.
Researchers say they've found bacteria, including some that are known to make people sick, in unused paper towels.
Apollo 12 finds hardy bacteria on an old Moon probe.
"You find fossil bacteria and organic compounds all over the place."
It is normal to find bacteria in the intestines of healthy animals that we use for food.
The next step is finding bacteria that have evolved to metabolize old lace.
It's the microbiologists' job to find bacteria in the water.
