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cryovolcano. noun. volcano that erupts with ice, water, and other materials (such as methane and ammonia), instead of molten rock and ash. Also called an ice volcano.
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Rather than erupting molten rock, it is theorized that the cryovolcanoes of Titan would erupt volatiles such as water, ammonia and methane. Scientists have suspected cryovolcanoes might inhabit Titan, and the Cassini mission has collected data on several previous passes of the moon that suggest their existence.
