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Galactic Glaciers: Ice Volcanoes on Distant Worlds

July 19, 2025

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Did you know that not all volcanoes spew hot lava? On some icy moons in our solar system, there are volcanoes that erupt with icy slush instead! These fascinating features are called cryovolcanoes. They can be found on moons like Triton, which orbits Neptune, and Enceladus, one of Saturn's moons. Unlike Earth's volcanoes that erupt molten rock, cryovolcanoes spew out water, ammonia, and methane, which are usually frozen but can become liquid due to heat from the moon's interior. Scientists are excited about cryovolcanoes because they might hold clues about where life could exist beyond Earth. The heat and chemicals from cryovolcanoes could create environments where tiny organisms could thrive, even in the coldest parts of space. Exploring these icy eruptions helps us understand how life might survive in extreme conditions elsewhere in the universe. Who knows, maybe one day you'll be part of a team that discovers life hiding around a cryovolcano!
Ask Your Kid: Imagine you're an astronaut visiting a moon with cryovolcanoes. What tools would you bring to study them, and what would you hope to discover?