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Moon rocks

SCIENTISTS FIND HYDROGEN IN APOLLO MOON ROCK SAMPLES

Reported by Sharmila Kuthunur

A fresh analysis of Moon rocks brought home during the Apollo missions has revealed the presence of hydrogen. This finding suggests future astronauts could someday use water available right on the Moon for life support and rocket fuel. Researchers with the US Naval Research Laboratory (NRL), to whom NASA provided the lunar samples for a research study, announced last week that they discovered hydrogen in lunar soil sample 79221. The detected hydrogen is thought to have been brought into existence by incessant showers of solar wind, and even comet strikes, on the Moon.

“Hydrogen has the potential to be a resource that can be used directly on the lunar surface when there are more regular or permanent installations there,” study lead author Katherine Burgess, a geologist at NRL, said. “Locating resources and understanding how to collect them prior to getting to the Moon is going to be incredibly valuable for space exploration.” Per one NASA estimate, it would cost thousands of dollars to launch a bottle of water to the Moon. To cut costs, ice on the Moon can be used in-situ as water for astronauts – and, in fact, may also be broken down into its hydrogen and oxygen components to be used as rocket fuel for journeys between the Moon and Earth.

In 2020, data from the Stratospheric Observatory for Infrared Astronomy (SOFIA), a now-retired infrared telescope, showed that water on the Moon may be sprinkled as ice across its surface, rather than in pools limited to permanently shadowed regions near the north and south lunar poles. Interestingly, Apollo astronauts had collected lunar rocks not from near the south pole of the Moon, where many countries hope to establish a long-term presence, but from near its equator. Thus the new findings “have important implications for the stability and persistence of molecular hydrogen in regions beyond the lunar poles,” scientists wrote in the new study.

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All About Space
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