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SqueakyKnees t1_iwwqfha wrote

Reply to comment by WontStopAtSigns in Mars was once covered by 300-meter deep oceans, study shows by magenta_placenta

Just Mars's mantel is 1,560,000 meters deep. The mantel material is also more dense than water. Problem is is size is relative. 300m of water is a crazy amount to us humans, but to a planet's mass, it's not that much.

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RunLoud6534 t1_iwz57q6 wrote

Equivalent to those little cups of water we hand out to people running a 5k.

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