Richard - just make sure they don’t end up on Mars or they won’t weigh the same.
There is an old adage - you can pour water on molten metal, but never pour
molten metal on water.  It was the water in the slab that boiled explosively.  I
read the book about Nucor steel in Ohio -  I forget the title - but the author
talked about a small puddle under a line that had a blob of molten steel hit it
and it sent a 150 lb ball of fire through the roof 80 feet in the air and out
into the parking lot.

Ed Minch