Ancient sandstorm leaves behind wreckage on Mars photo of the day for July 20, 2026

NASA's Curiosity rover has provided new evidence of ancient sandstorms on Mars, suggesting the planet once had a more active atmosphere. This discovery adds to the growing body of evidence that Mars was once a water-rich environment.
Why it matters
Studying the geological history of Mars helps scientists understand the evolution of planetary atmospheres and the potential for past life in the solar system.
Solar System Mars Ancient sandstorm leaves behind wreckage on Mars | Space photo of the day for July 20, 2026 News By Chelsea Gohd Published 20 July 2026 Remnants from Martian history stay scattered across the planet's surface.
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NASA's Curiosity rover has uncovered evidence of ancient sandstorms on the Red Planet.
Scientists think ancient Mars was quite different than it is today. While we might know it now as a barred, reddish wasteland, billions of years ago it actually had an atmosphere. Scientists even think that it had flowing rivers and expansive lakes.
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