Wednesday , July 28 2021

Discovering that there is life in the Antarctic

Sunday 20 & # 39, January, 2019


The Lake Mercer tends to experience temperatures under 0, but it does not automatically freeze. It is to this great extension & # 39; water & # 39; below the surface – equal to three times the surface & # 39; Jujuy – receives intense pressure from the layer & # 39; ice cover and keep it isolated from the rest of the world more than 100,000 years ago. F & # 39; that place, team & # 39; experts just found different ways & # 39; life.

It is a scientific fact that practically does not register antecedents, according to a report published yesterday Clar. The deep descent & # 39; this lake has been planned for several years. The operation cost 5.2 million dollars and carried out by the organization of North America Salsa (Spanish, Scientific Access to Subglacial Lakes Antarctic) with the support of the National Science Foundation USA.

Experts believe that only detect microbial single cell. However, their effort surprising results: against the odds & # 39; all, they brought 10,000 cell & # 39; bacteria per milliliter of & # 39; water. And even seen the remains of crustaceans, the dewigradi or water bears – known to withstand extreme temperatures and pressure għolja-, some plants and fungi.
The Antarctic contains more than 400 lakes hidden under his whiteness. The Mercer is the second to be addressed directly by humans and is part of a constellation of & # 39; nine & # 39; lakes in the western sector of the continent, satellite discovered in 2006.

The conditions are so inhospitable that resemble those of & # 39; ocean subglacial of & # 39; Mars and the moons of & # 39; Jupiter or Saturn. The exploration of this pristine corner of our planet can give clues about bisphere elsewhere in the galaxy. According to scholars, the collected organisms will be inhabited lakes and streams in the mountains of Anturida during periods when the glaciers were withdrawing, probably during the last 10,000 years or 120,000. When the weather is cool again another & # 39; later, the ice sure to return & # 39; admit that oasis of life.

The consequences of the discovery are enormous. On the one hand, allows you to know more about the Arctic hydrological system and, therefore, the historical movement of glaciers. In turn, give clues about the future effects of global warming. Remains & # 39; in & # 39; hand scientists studying the DNA sequences of creatures and jiddejtu the carbon material. What is certain is that research at Lake Mercer opened door to learn more about the Earth and the planets wide audiences.

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