China’s Space Program Makes Waves with Discovery of Water in Moon Soil

By: Sam Watanuki | Published: Jul 25, 2024

China has been investing heavily in its space program, aiming to catch up with traditional space powers like the United States and Russia.

Over the past decade, China has launched several successful lunar missions, each pushing the boundaries of space exploration.

The Chang'e-5 Mission

In 2020, China’s Chang’e-5 mission made history by being the first mission in four decades to return with lunar samples.

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A photograph of the Moon in the night sky

Source: Wikimedia

The rover brought back rock and soil samples from a high-latitude region of the moon, providing new data for scientists to analyze.

Discovery of Water in Moon Soil

Scientists from Chinese universities analyzing the Chang’e-5 samples found traces of water.

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drop falling into water

Source: Freepik

This discovery was significant as the samples were from a much higher latitude than previous missions, offering new insights into the presence and form of water on the moon.

Hydrated Salts in Sunlit Areas

The samples revealed that water molecules can persist in sunlit areas of the moon in the form of hydrated salts.

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A close-up view of the texture of salt.

Source: Christian Bass/Unsplash

The finding was detailed in the journal Nature Astronomy, providing a fresh perspective on lunar water’s chemical and physical forms.

Unknown Lunar Mineral

The Chang’e-5 samples also contained a new mineral crystal, dubbed “unknown lunar mineral (ULM-1)”, which is rich in water and ammonia molecules.

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A photograph of the South Pole-Aitken Basin

Source: Wikimedia

Over 40 percent of this mineral by mass is composed of water, making it a significant discovery for future lunar exploration, as well as providing potential insights into the moon’s origin and evolution.

Ruling Out Contamination

Researchers ensured the integrity of their findings by ruling out terrestrial contamination or rocket exhaust as sources of the detected water.

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Photograph of the Moon

Source: Freepik

The chemical and isotopic compositions of the samples confirmed their lunar origin.

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Implications for Future Missions

The presence of water on the moon has far-reaching implications for future space missions.

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An astronaut on the moon standing beside an American flag.

Source: NASA/Unsplash

Water can be used to produce rocket fuel and support human life, making long-term lunar missions more feasible and sustainable.

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China's Space Achievements

China’s space achievements go beyond the Chang’e-5 mission.

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A view of Chang’e-5’s docking, seen in black space.

Source: China News Service/Wikimedia Commons

In January 2019, the Chang’e-4 mission made a historic landing on the far side of the moon, and the recent Chang’e-6 mission brought back the first samples from this unexplored region.

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Competing in the New Space Race

China’s space program is seen as a major competitor in the new space race.

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A large rocket ship launching off from Earth and spilling large plumes of smoke behind it

Source: NASA

NASA Administrator Bill Nelson has noted the competitive nature of this era, with China’s rapid advancements posing a significant challenge to the United States.

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Plans for a Lunar Base

China has ambitious plans to send a crewed mission to the moon by 2030 and aims to build a lunar base.

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A photograph of the Earth from the moon

Source: NASA/Newsmaker/Getty Images

These goals highlight China’s commitment to establishing a long-term presence on the moon.

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Understanding Lunar History

Finding water on the moon is not just about resources for space missions.

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A rendering of Chang’e-5 and Chang’e-6 on the surface of the moon.

Source: China News Service/Wikimedia Commons

It also provides new insights into the moon’s geological history and evolution, potentially reshaping our understanding of its formation.

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A New Era of Exploration

China’s discovery of water in lunar soil marks a new era of exploration and discovery.

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View of the Moon (from at point 70 east longitude), taken during NASA's Apollo 8 mission.

Source: NASA/Interim Archives/Getty Images

As China continues to push the boundaries of space exploration, these findings will play a crucial role in shaping the future of lunar and space missions.

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