The discovery of water on the Moon

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The discovery of water on the moon. Strong evidence of the presence of water on the lunar surface has been discovered by three research-based satellite spectroscopically separated. Although the amount of water present seem small, but is considered potentially useful for the astronauts who visited the moon.

Previous examinations detect only hydrogen and never be proven what the hydrogen-bonded, said Roger Clark at the U.S. Geological Survey in Denver, who was also involved in two of these studies. Now it has been reported the detection of chemical bonding OH and H2O.

The discovery of water on the moon
which Carle Pieters at Brown University, U.S., and his team - whose members include Clark - analyzing the data taken during the mission of India's Chandrayaan-1 at the end of 2008. Spectrometer M3 (Moon Mineralogy Mapper) NASA record infrared absorption (IR) near 2.8 to 3.0 micrometers - are consistent with the OH and H2O - near the lunar poles on the top surface of the moon.

Clark subsequently re-analyzed the IR spectroscopic data collected on the plane Cassini in 1999. He re-identify the absorptions near 3 micrometers close to the poles and at low altitude. He said that the amount of water that looks apparently ranges from 10 to 1000 ppm.

Alleged that when the moon's surface exposed to hydrogen ions in the solar wind, the oxygen released from lunar minerals in the form of OH and H2O

Additional support for the existence of this water comes from Jessica Sunshine at the University of Maryland, U.S., and her colleagues are collecting data in June 2009 on the aircraft-satellite Deep Impact. Pieter team to meet the demand they examine the same places at different times using an IR spectrometer. They detected OH and H 2 O bound to cover a lot of the lunar surface.

Sunshine added that his team observed daily patterns indicate that the formation and retention of OH and H2O is a continuous process. These findings further justify the solar wind theory about why there is water on the moon, added Sunshine. This theory states that the hydrogen ions in the solar wind releasing oxygen, in the form of OH and H2O, from the moon's surface.

Results Chandryaan-1 is the first discovery but the M3 instrument only covers part of the relevant wavelengths, said Paul Lucey, an expert in planetary science and remote sensing at the University of Hawaii. Cassini measurements include all relevant wavelengths, so these findings confirm and strengthen but at a very low resolution. Deep Impact also includes the measurement range of wavelengths needed for confirmation, and capable of measuring the same places at different times, which indicates that water is being migrated to the surface of the moon.

To give an idea of the quantity of water found it, sunshine said: The amount of water we are talking about is still smaller than the amount of water contained in the soil the driest desert on Earth.

Researchers interested in the idea to collect water. There is a possibility of a static water source can be trapped directly by the astronauts, said Lucey. But he cautioned that the source will be very small and require a very large collector.

That's the chronological story of the discovery of water on the moon.

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