Posted on by Evan Gough

An Ancient Martian Lake Was Larger Than Any Lake on Earth

In January 2024, DLR's HRSC on board ESA's Mars Express spacecraft captured the Caralis Chaos region, which has several interesting and sometimes puzzling landscape features – such as a field of small, light-coloured hills to the northeast (bottom-right of the image). The mounds are located in the remains of a depression that was once filled by a lake. Image Credit: ESA/DLR/FU Berlin (CC BY-SA 3.0 IGO)

The ESA’s Mars Express orbiter captured an image of the remains of a vast ancient lake on Mars. The remnant lake bed has been weathered and altered by the passing of billions of years. In the planet’s distant past, scientists say, it held enough water to fill Earth’s Caspian Sea almost three times over.

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