Water Beneath Mars’s Dry Surface

THE OBSERVATION

What the evidence can show.

Mars preserves abundant evidence that water shaped its surface in the past. The fate of that water is a separate question: some escaped, some became incorporated into minerals, and some may remain underground. Geophysical interpretations can constrain possible reservoirs without directly seeing or sampling them. A dry-looking surface therefore does not establish that the entire crust is dry.

THE ILLUSTRATION

What the artwork imagines.

The cutaway invents a viewpoint beneath the landscape so that fractured rock and possible water can be considered together. The turquoise traces are illustrative lighting, not an observed network of liquid channels. Their abundance, depth, continuity and scale are not mapped measurements. The scene depicts a possible setting for the water question rather than a confirmed buried ocean.

FOLLOW THE IMAGE INTO THE STORY

The science behind this scene.

What Do Mars’s Rocks and Seismic Waves Reveal About Water? The Water Mars Hid in Rock Mars 3D Atlas Explore volcanoes, canyons and moons Mars Is Still Erasing Its Past Water on Other Worlds: The Habitability Gap Can Phobos Preserve Pieces of Mars? MMX Phobos Arrival Countdown ESCAPADE Mars Arrival Countdown

Read the illustrated article

Keep looking.

An Ancient Martian Lake

AI-generated close view of mineral-bearing Martian rock, illustrating water altered and held within minerals.

Water Held in Martian Minerals $AI-generated cutaway below the InSight landing region with conceptual fluid-bearing deep fractures.$ Listening Beneath the InSight Landing Site