NASA scientists have uncovered a massive underground ocean deep beneath Mars’ surface—enough water to cover the entire planet in oceans over a mile deep!This incredible find, located 11.5 to 20 kilometers below the surface, suggests Mars might still have the conditions to support life, hidden away in tiny rock pores.
Scientists find oceans of water on Mars. It's just too deep to tap. - Berkeley News
Seismic data from NASA's Insight lander indicate deep, porous rock filled with liquid water
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