Astronomy • Exploration • Strategy

Scientists found a ‘bathtub ring’ on Mars. Could it be evidence of an ancient Red Planet ocean?

A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the Red Planet.

Astrobitica April 20, 2026 (Last updated: April 20, 2026) 1 minute read

A huge geological structure on Mars resembling a bathtub ring may be evidence of an ocean that once covered a third of the Red Planet.

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