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When Fire Brought Ice to Mars
Mars is a planet of mystery! Its surface today is cold and dry, yet evidence suggests it was once home to flowing water. Most of the planet's remaining ice sits locked away at the poles, but recent observations have detected signals of hydrogen in equatorial regions that could indicate buried ice deposits where the environment should be too warm for ice to survive. How did frozen water end up at Mars's equator? It seems we might find the answer in Martian volcanoes.
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