Earth & Geology

The Ocean Floor Is More Alien Than the Surface of Mars

Fact 1 of 254%

We have better maps of Mars than our own ocean floor.

A high-resolution rendering of seabed elevations.

While satellites have mapped the entire surface of Mars, only about 25 percent of the seabed has been charted with modern sonar. The rest remains a blurry mystery hidden under kilometers of water.

"We have mapped 100% of Mars, but only a fraction of our own planet's floor."

This lack of data means there are likely thousands of undiscovered mountains taller than 1,000 meters lurking in the dark.

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