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Ancient Mars Eruptions May Explain Equatorial Ice Formation

10/23/2025

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Summary

Story summary

A new study finds ancient Martian volcanic eruptions may explain equatorial ice by releasing water vapor that freezes in the atmosphere.
Using computer models of eruptions dated 4.1 to 3 billion years ago, researchers estimate ice up to 16 feet thick.
Elevated hydrogen detected by Mars Odyssey (National Aeronautics and Space Administration orbiter) and ExoMars (European Space Agency mission) may indicate buried ice and guide future exploration.

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Story summary

A new study finds ancient Martian volcanic eruptions may explain equatorial ice by releasing water vapor that freezes in the atmosphere.
Using computer models of eruptions dated 4.1 to 3 billion years ago, researchers estimate ice up to 16 feet thick.
Elevated hydrogen detected by Mars Odyssey (National Aeronautics and Space Administration orbiter) and ExoMars (European Space Agency mission) may indicate buried ice and guide future exploration.