Which of these is the highest and largest mountain in the solar system?

I am pretty sure that the highest mountain on earth is under the ocean.

Always interested in learning about other planets, and other worlds in outerspace

sid, hi sid it's me blessing

I expect the lower value to be correct as it has been measured, whereas the higher number would have been calculated from telescopic observation. Either way it's big.

Adie, yes.

So is it 16 miles high or 13.6 miles high?

Player Mr Knowitall, So you believe Earth is flat? Lol