The Moon, often seen as a dry and airless world, surprises scientists once again. Researchers have detected hematite, a type of rust, on the lunar surface. This discovery came from data collected by India’s Chandrayaan-1 mission in 2020. What’s even more intriguing is that this rusting appears to intensify around the time of the full Moon.
How is the Moon Rusting?
The Moon lacks both air and liquid water, the two main ingredients for rusting on Earth. Yet, scientists believe that Earth’s own atmosphere and magnetic field may be playing a surprising role. During the full Moon, our planet’s magnetotail sweeps over the Moon, possibly delivering small amounts of oxygen and water molecules from Earth’s atmosphere. These elements could allow iron on the Moon’s surface to oxidize, forming hematite.
Why Does Rusting Get Worse During Full Moon?
Experts noticed that hematite concentrations are higher on the side of the Moon facing Earth, especially during full Moon phases. This pattern supports the theory that Earth’s influence, particularly at peak exposure, contributes to the unexpected rusting. The findings challenge our understanding of lunar chemistry and highlight the ongoing relationship between Earth and its natural satellite.
