Chapter 38

“They acted that way, anyway. But say, Mart, if that planet is so old that all their land area has been eroded away, how come they’ve got so much water left? And they’ve got quite an atmosphere, too.” “The air-pressure, while greater than that now obtaining upon Earth, was probably of the order of magnitude of three meters of mercury, originally. As to the erosion, they might have had more water to begin with than our Earth had.” “That’d probably account for it.” “There’s one thing I want to ask you two scientists,…