There might be a hidden ocean's worth of liquid water below the surface of Mars, seismic evidence suggests. According to a new paper published April 25 in the journal National Science Review, ...

Giant, dense structures have been discovered beneath the surface of Mars and they are leaving experts both mystified and excited. The first of these, confirmed by researchers in a fascinating paper, ...

Liquid water once shaped the Martian landscape dramatically, carving valleys, filling lakes, and forming vast oceans. Billions of years ago, during Mars' early days known as the Noachian and Hesperian ...

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