[George from New England]

I would have thought that the definition of MUD included some part water. Not at those temperatures.

[dead]

Not water, just liquid.

[HamiltonJay]

I believe in this case the liquid portion of the "mud" is liquid hydrogen.

[Brilliant]

At those temperatures, the H2O is the "dirt" in the mud. The liquid is probably methane.

[joesnuffy]

poly alloy... liquid metal