Have you ever noticed the message on the front of a Lysol bottle: 鈥淜ills 99.9% of viruses and bacteria鈥�?
Well, that 0.1% is causing NASA some real issues. In order to prevent our organic matter from infiltrating other planets, and vice versa, NASA aims to provide what they call If a bacterium from Earth made it to Mars it may severely hinder any chance we have of finding native Martian life, so NASA takes every precaution to prevent cross-planetary contamination.
Hence the need for , inside which visitors must wear a face mask, hood, booties and coveralls, and still can鈥檛 come closer than several feet away from the probes and rovers contained within.
But despite everyone鈥檚 best efforts, some bacteria will always be present. Specifically, the bacteria that are the most hardy, having survived many rounds of chemical and UV cleansings.
In an environment that clean, however, these bacteria can鈥檛 dine on their usual fare of decaying plant and animal matter. So, in order to survive, they鈥檝e actually developed the ability to eat the cleaning materials!
showed that bacteria, a particularly persistent and troublesome bacterium for hospitals, is able to survive on only ethanol and can degrade cleaning products. These troublesome microbes are resistant to radiation, hydrogen peroxide, high pressures and high temperatures.
, a Japanese astronaut, proved that microbes are making it to space. He swabbed fifteen surfaces around the International Space Station and brought them back to Earth. From these swabs more than 12 000 microbes were identified!
It is important to remember though that the vast majority of these, just like the majority of microbes on your skin, phone and counter, are totally harmless. If even NASA鈥檚 cleanrooms can鈥檛 be microbe free, your home will never be either, and that鈥檚 ok.
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