fbpx
  Previous   Next
HomeNationChina’s Chang’e-5 Probe Proves Presence of Water On Moon: Report

China’s Chang’e-5 Probe Proves Presence of Water On Moon: Report

China’s Chang’e 5 lunar lander has found the first-ever on-site evidence of water on the surface of the moon, lending new evidence to the dryness of the satellite.

A study published on Saturday in the peer-reviewed journal Science Advances revealed that the lunar soil at the landing site contains less than 120 parts-per-million (ppm) water, or 120 grams water per tonne, and a light vesicular rock carries 180 ppm – much drier than rocks on Earth.

The presence of water had been confirmed by remote observation but the lander has now detected signs of water in rocks and soil.

A device on-board the lunar lander measured the spectral reflectance of the regolith and the rock and detected water on the spot for the first time.

The water content can be estimated since the water molecule or hydroxyl absorbs at a frequency of about three micrometers, citing researchers from the Chinese Academy of Sciences (CAS).

It was the solar wind that contributed to the most humidity of lunar soil as it brought hydrogen that makes up the water, the researchers said.

The additional 60 ppm water in the rock may originate from the lunar interior, according to the researchers.

Therefore, the rock is estimated to hail from an older, more humid basaltic unit before being ejected onto the landing site to be picked up by the lunar lander.

The study revealed that the moon had turned drier within a certain period, owing probably to the degassing of its mantle reservoir.

The Chang’e 5 spacecraft landed on one of the youngest mare basalts located at a mid-high latitude on the moon. It measured water on the spot and retrieved samples weighing 1,731 grams.

“The returned samples are a mixture of granules both on the surface and beneath. But an in-situ probe can measure the outermost layer of the lunar surface,” Lin Honglei, a researcher with the Institute of Geology and Geophysics under CAS.

Lin also said that to simulate authentic lunar surface conditions on Earth is challenging, thus making the in-situ measurement so essential.

The results are consistent with a preliminary analysis of the returned Chang’e 5 samples, according to the study.

The findings provide more clues to China’s Chang’e-6 and Chang’e-7 missions. The investigations of lunar water reserves come into the limelight as the building of manned lunar stations are in the pipeline in the next decades, the report said.

More News

Best Time To Invest In India, Says PM Modi At World Economic Forum

Prime Minister Narendra Modi Monday made a strong pitch for India as an investment destination and said this is “the best time” to invest...

Padma Shri Shanti Devi Dies At 88; PM Modi Condoles

Prime Minister Narendra Modi on Monday condoled the demise of social worker and Padma Shri awardee Shanti Devi, who passed away last night at...

Hyderabad Become First Indian City To Host Formula E

Minister for MA&UD and Industries and Commerce KT Rama Rao on Monday entered into an agreement, with the Federation of Internationale de Automobile (FIA),...

RELATED NEWS

Padma Shri Shanti Devi Dies At 88; PM Modi Condoles

Prime Minister Narendra Modi on Monday condoled the demise of social worker and Padma Shri awardee Shanti Devi, who passed away last night at...

Tonga Volcanic Eruption Shockwaves Felt In India Too

The massive shockwaves due to the eruption of Hunga-Tonga-Hunga-Ha'apai in Tonga were also felt across India, meteorologists said on Monday. "Every weather station across India...

Arvind Kejriwal Flags Off Delhi First Electric Bus

Delhi chief minister Arvind Kejriwal flagged off the first electric bus of Delhi Transport Corporation (DTC) on Monday. Kejriwal said this is an “important...