It Looks Like Life Dug These Gullies on Mars, but Something Stranger Did

Blocks of frozen carbon dioxide sliding down Martian dunes may have carved the planet’s strange gullies, mimicking the work of living creatures. In lab experiments, scientists recreated this process, showing how sublimating CO2 ice can blast and burrow through sand, forming deep trenches that match those seen on Mars. The findings reveal a powerful geological […]

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