Glowing Jupiter’s Moon (Europa).

Jupiter's Glow-in-the-Dark Moon - The Atlantic

NASA study has found that Jupiter’s moon Europa can glow in the dark due to radiation.

Scientists are almost certain that hidden beneath the icy surface of Europa is a salty-water ocean thought to contain twice as much water as Earth’s oceans combined. Europa is Jupiter’s fourth largest moon and as it passes through the strong magnetic field of its host planet, its surface is bombarded by high-energy protons, electrons, and ions. As these particles interact with the moon’s salt- and ice-rich crust, they could trigger complex physical and chemical processes that have important consequences for Europa’s chemical composition.

Europa: Nasa discovers the secret to Jupiter's colour-changing, glowing moon  | The Independent
EUROPA

Europa may be the most promising place in our solar system to find present-day environments suitable for some form of life beyond Earth.

Slightly smaller than Earth’s Moon, Europa’s water-ice surface is crisscrossed by long, linear fractures, cracks, ridges, and bands. The moon’s ice shell is probably 10 to 15 miles (15 to 25 kilometers) thick, beneath which the ocean is estimated to be 40 to 100 miles (60 to 150 kilometers) deep. Like Earth, Europa is thought to also contain a rocky mantle and iron core.

Researcher’s came to the conclusion that the reason behind it glowing in the dark is the radiation it receives from the largest planet of our solar system. The Research team also believes that its surface may contain common salt found on our planet as well which helps it glow in the dark.

NASA will conduct further research using the Europa Clipper mission, which will conduct flyby near the orbit of the moon. This will help scientists understand whether their hypothesis was correct or not.

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