Scientists have extracted long-dormant microbes from inside the famous giant crystals of the Naica mountain caves in Mexico - and revived them. The organisms were likely to have been encased in the striking shafts of gypsum at least 10,000 years ago, and possibly up to 50,000 years ago.
It's another example of life being able to adapt and cope in the worst environments. They're extremophiles -- microbes that can thrive in seemingly impossible conditions.
above: stunning formations of Lake Cave in Australia, which has nothing to do with Crystal Cave. They're just cool.
The environment is hot (40-60C), humid and acidic. With no light at the bottom, lifeforms have to use chemosynthesis to survive. That is, they must get the energy needed to sustain themselves by sucking rock juice from the minerals around them.
Using sterile tools, Dr Boston and colleagues opened these inclusions and sampled their contents.
Not only did they detect the presence of bacteria and archaea, but they were able to re-animate these organisms in the lab.
Scientists have previously claimed to revive bugs thought to have been dormant for many millions of years, trapped inside salt or ice crystals.
Many scientists suspect that if life does exist elsewhere in the Solar System, it is most likely to be underground chemosynthesizing, like the microbes of Naica.