What Mars Express just photographed in Shalbatana Vallis isn't just an ancient flood channel — it's the strongest topographic argument yet that Mars once held a real ocean - Space Daily

What Mars Express just photographed in Shalbatana Vallis isn't just an ancient flood channel — it's the strongest topographic argument yet that Mars once held a real ocean Space Daily Waterworn chaos on Mars European Space Agency A Cataclysmic Upswelling of Groundwater Carved This Channel on Mars Universe Today Shalbatana Vallis The Planetary Society ESA’s Mars Express Reveals a Water-Carved Landscape on Mars DIY Photography