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Mars Experienced Catastrophic Flooding 3.5 Billion Years Ago, Reshaping Planet's Surface

Edited by | Updated: May 17, 2026 12:54 IST
The source of so much water remains a puzzle.

Highlights

  1. Scientists revealed Mars was shaped by floods about 3.5 billion years ago
  2. Mars Express HRSC images show valleys, craters, and sediment from ancient floods
  3. Shalbatana Vallis is a 1300 km-long valley carved by groundwater on early Mars
Published: May 17, 2026 12:54 IST

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