There’s sediment, microorganisms and sea life – but we don’t know what’s at the bottom of some parts of the ocean as it’s too deep, that still remains a mystery!
water, rocks, some very weird fish, volcanoes, a whole bunch of other stuff we don’t know much about.
there’s a set of maps somewhere showing how much of mars is mapped (100%) vs how much of the oceans are mapped (not a lot!). We know more about the surface of mars than the surface of the earth, which is pretty crazy.
Comments