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New evidence confirms the presence of water at the lunar poles

C Ambiado a little issue, now we present some excerpts from an astronomical news announced last Friday by NASA in stating that it has found new evidence of the occurrence of water on the moon. These findings are important for better understanding of solar system formation processes and ultimately the possibility of what life is a non-exclusive event on earth.

"indicates presence LCROSS Impact of Water on the Moon" (LCROSS Impact Indicates standing water on Moon)

Source: NASA, Posted 13-Nov-2009

Argument that the moon is a dry and desolate place has changed from that decubrió it contains water.

Preliminary data obtained from satellite observation of the crater to the lunar crater (known by its initials in English LCROSS) mission successfully indicate that the water found during impacts conducted on October 9, 2009 on the region that Cabeus is permanently shaded and near the south pole of the moon. The impact caused by LCROSS has created new pieces of information in our knowledge, said Michael Wargo, chief scientist at NASA Headquarters in Washington. For some time, scientists had speculated on the huge amount of hydrogen had been observed at the lunar poles, so that the impact of LCROSS has added new evidence on the possibility of having water in greater quantities and more widely distributed than had previously been speculated.

regions which are under permanent lunar shadow represent key areas to understand more fully the history and evolution of the solar system to be more valuable than samples of polar ice caps on earth ....

"Multiple lines of evidence show that water vapor in the plume caused by the LCROSS impact. The concentration and distribution of water and other substances requires further analysis, but so far is positive Cabeus say that the region has water, "said Anthony Colaprete, principal investigator on the NASA project. Further confirmation came
ultraviolet emission spectrum, which is attributed to the presence of hydroxyl radicals produced during the breakup of water molecules in the sun. When the molecules and atoms are excited to release energy at specific wavelengths that are detected by the spectrophotometer .... When electrified, each gas produces a different color. Thus, the ultraviolet spectrum detected by The spectrometer detected traces of hydroxyl just after impact, which is consistent with a cloud of water vapor in the sunlight.

LCROSS The team is constantly working to fully understand all the data generated by the impact, as new evidence is expected to continue to be discovered.

English translation: Cienciacolectiva.blogspot.com; to refer to the original note click: http://www.bbc.co.uk/mundo/ciencia_tecnologia/2009/11/091113_1756_luna_ao.shtml

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Maize Varieties and Cultural Identity: At Risk For

S ollowing the controversial GM maize crop, now have left some notes in the newspaper La Jornada that like to share in this space. As we mentioned under the cultivation of maize in Mexico goes back thousands of years of history, long before the English arrived. It is for this simple reason we have the greatest diversity of varieties of corn, each linked to different forms of management and developed under different purposes. If the Federal Government and the SAGARPA be able to understand the context in which it has developed the cultivation of maize in Mexico, fully understand the risks that brings the introduction of transgenic maize not only on the erosion of diversity mails but about the erosion of cultural identity that implies.

Given this dangerous ignorance, we have to inform citizens in other ways, reflect continually to find ways of organizing and political action against these myopic.

Below you will find fragments of the note and the link to read it in full:

"threaten diversity experimental plots of corn, says researcher"
Posted by Matilde Pérez U ,3-11 La Jornada -09, p. 35

Without the participation of farmers in conservation and research on corn and with the approval of experimental field trials of transgenic varieties are at risk of losing the diversity of the plant, said Antonio Serratos Hernandez, a researcher at the Autonomous University of Mexico City.

The existence of 300 races of maize is the result of indigenous resistance for over 500 years and the farmers who continue as guardians of grain, for whom distance is no impediment to the exchange of seeds, which ensures to maintain their diversity , added ... The study

The origin and diversity of maize in the Americas, Serratos notes that there are two strategies for the conservation of the grain: the collection and preservation of samples in genebanks and in situ conservation, which involves promoting and supporting the reproduction of social and environmental conditions of the farmer to preserve the seed ...

"The trail sees U.S. agro-technology and genetic resources ex situ conservation as a capital reserve of germplasm banks and industrial applications such as risk insurance for the future. The preservation of the corn is done through the sale of genetic resources of the farmers produced over centuries of community work. "That kind of preservation is of high value, but to develop the full potential and protect the diversity of culture is it necessary for farmers ...

In the study, Serratos points out that the best way to preserve the breeds of corn is to preserve the peasant mode of production. "You can not circumvent that protection of biodiversity (grain) requires the strengthening of rural society. It is necessary that (the producer) has improved living conditions to prevent abandon agriculture. "

in situ conservation, he says, requires government support and impetus to initiate programs that empower social action and community organization . The destruction of the social fabric in rural communities increases risk of extinction of corn, whose social and cultural significance should be reassessed. Their protection, he notes, is a task that should involve all the people of America

Full story:

http://www.jornada.unam.mx/2009/11/03/index.php?section = society & article = 035n2soc