Mysterious gullies on Mars dug by sliding blocks of CO2 ice
Some dunes on Mars are covered with meandering gullies defying what we know for gully formation here on Earth. Planetary scientist Dr. Lonneke Roelofs from Utrecht University investigated how these gullies were formed. In a test setup, she observed that blocks of CO2 ice ‘dug’ these gullies in a unique way. Other researchers had previously …
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