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NASA Challenges Mars Lake Theory with New Findings

11/29/2025

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Summary

Story summary

NASA scientists Gareth Morgan and Than Putzig used the Mars Reconnaissance Orbiter's Shallow Radar (SHARAD) to challenge subsurface lake theory at Mars's south pole, concluding the feature is likely rock and dust in findings published November 17, 2025.
The study suggests bright radar signals may reflect geological features such as ancient lava flows.
The approach could guide exploration of other Martian regions for water and influence planning for crewed missions.

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Story summary

NASA scientists Gareth Morgan and Than Putzig used the Mars Reconnaissance Orbiter's Shallow Radar (SHARAD) to challenge subsurface lake theory at Mars's south pole, concluding the feature is likely rock and dust in findings published November 17, 2025.
The study suggests bright radar signals may reflect geological features such as ancient lava flows.
The approach could guide exploration of other Martian regions for water and influence planning for crewed missions.