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'Bathtub ring' hints at ancient Martian ocean
- April 15, 2026 at 7:20 PM
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Caltech researchers have identified geological features on Mars that could point to the existence of a long-dried ocean that once covered a third of the Red Planet's surface. The research was conducted by former Caltech postdoctoral scholar Abdallah Zaki and Caltech professor of geology Michael Lamb. The study is described in a paper appearing in the journal Nature.
Originally published at Phys.org