Scientists recreated Martian gullies in a lab and found they were carved by exploding CO₂ ice blocks, not flowing water. The discovery explains how these trenches form naturally and offers new insight into Mars’ ever-changing landscapeScientists recreated Martian gullies in a lab and found they were carved by exploding CO₂ ice blocks, not flowing water. The discovery explains how these trenches form naturally and offers new insight into Mars’ ever-changing landscape
