Depths of the Earth are teeming with mysterious life
This may seem weird, but deep beneath our feet is a living world. Look under the soil layer under the layer of rocks and find the hot, bustling underground world, full of life, which is next to the biosphere on the surface blush with shame. How much life under the ground - it is an open question. And try to answer it in 1200 scientists from the Observatory Deep Carbon, probing of the Earth's crust. Ten years later, sensing they seem, the answer came.
, they announced this week that the observations given enough data to estimate the number of lives underground. In the underground world is 15 billion to 23 billion tons of carbon mass. This is equivalent to 385 times the specific weight of carbon 7, 5 billion people on the surface.
But do not worry about what a powerful underworld biomass can rise up and overwhelm us, the inhabitants of the surface: it consists of tiny bacteria and eukaryotes, uniquely adapted to living in these hellish conditions.
The researchers found microbes at a depth of 5 km under the continents and 10, 5 kilometers below the ocean's surface, hidden in cracks in the rocks. which sometimes are only a few microns - thinner than a human hair. Surprisingly, the scientists were able to get samples from the ground, to sequence their DNA in the lab and unleash their metabolic processes. In some cases, germs and bacteria have adapted to live on hydrogen and carbon dioxide and sustain itself for hundreds of years. Other microbes living in stasis for millions of years, and they can be brought back to life in the laboratory. A new estimate of the total life under the surface of the earth responds to one outstanding issue, but many are still waiting in the wings. Germs under the ground - in a sense, "dark matter." Like a cosmic dark matter, which is only on its gravitational effects can be found, there are mysterious germs that Deep Carbon Observatory, scientists can observe by DNA sequencing, but can not recreate in the laboratory.
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