ESA - European Space Agency on Instagram: "How did Mars lose its water? 🔴 A single, unusual dust storm helped scientists uncover a missing piece of the puzzle. Sometimes, it only takes a brief event to reshape an entire planet’s future. 📹 @europeanspaceagency 🎞️ ESA; ESA/Mars Express/VMC - @creativecommons BY-SA IGO 3.0; ESA / @germanaerospacecenter / @fu_berlin, CC BY-SA 3.0 IGO; ESA/GCP/UPV/ @ehu.eus; Brines, Aoki et al.; 📸 Brines, Aoki et al."