Moon’s Mystery Water May Be Gift from Earth’s Electrons

moon s mystery water may be gift from earth s electrons.jpg Science

In a groundbreaking revelation that could have significant implications on future lunar missions, scientists have proposed that Earth’s electrons might be instrumental in creating water on the Moon. This exciting theory, which challenges long-standing assumptions about lunar hydration, suggests that the Moon’s water production isn’t solely dependent on solar wind, but also on Earth’s own magnetic field. This discovery could potentially transform our understanding of the Moon and pave the way for more sustainable space exploration.

For years, scientists believed that the solar wind – a stream of charged particles including electrons, protons, and alpha particles released by the Sun – was responsible for creating water on the Moon’s surface. This process was thought to occur when these high-speed particles crashed into the lunar surface, triggering chemical reactions that bonded hydrogen and oxygen atoms. However, this theory left a glaring question unanswered: How was the Moon able to produce water while in Earth’s shadow, shielded from the solar wind? The recent study, published in Nature Astronomy, offers an intriguing answer to this riddle, suggesting that Earth’s magnetic field plays a crucial role in lunar water formation.

Earth’s Electrons Could Be Creating Water on the Moon

As space agencies around the globe gear up to land missions on the Moon’s south pole, a novel theory suggests that electrons from Earth could be aiding the formation of water on parts of the lunar surface. This discovery could significantly impact future space exploration endeavors.

A New Theory in Lunar Science

Contrary to the long-standing belief that the Moon is devoid of water production during periods it is in Earth’s shadow, scientists now posit that Earth’s magnetic field, distorted by solar wind, could interact with the Moon to form water. This theory, published in Nature Astronomy, reveals that lunar water appears in areas directly corresponding to the Moon’s path through Earth’s magnetic tail.

Assistant researcher at the UH Mānoa School of Ocean and Earth Science and Technology, Shuai Li, expressed surprise at the results, stating, "the water formation in Earth’s magnetotail is almost identical to the time when the Moon was outside of the Earth’s magnetotail." Li further explained that this could indicate the presence of additional formation processes or new water sources not directly associated with the implantation of solar wind protons.

Earth’s Impact on the Moon

This breakthrough finding suggests that Earth might influence conditions on the Moon in previously unconsidered ways. Li, the study’s co-author, said, "Altogether, this finding and my previous findings of rusty lunar poles indicate that the mother Earth is strongly tied with its Moon in many unrecognized aspects."

The existence of water on the Moon was first confirmed during India’s Chandrayaan-2 mission in 2019. Last month’s Chandrayaan-3 mission aimed to discover water in the Moon’s South Pole, although the success of this mission is not yet clear.

Implications for Future Lunar Missions

NASA’s Artemis program, slated to send astronauts to the Moon for the first time since the 1970s in 2025, intends to initiate continuous lunar bases. This ambitious plan would be significantly facilitated by the presence of lunar water.


The revelation that Earth’s electrons could be contributing to the formation of water on the Moon is an exciting development in the field of lunar science. This finding not only deepens our understanding of the relationship between the Earth and the Moon, but also opens up new avenues for future lunar missions. With the possibility of using lunar water, establishing continuous lunar bases might be closer to reality than we think.

Crive - News that matters