re: spherules: that pesky data which simply won't go away
Yours is one of several explanations given and it doesn't fit the spherules perfectly. Science looks for the simpest and best fitting explanation not the one Ed most likes.
"Mars is Mars like!" How completely profound! Next your going to tell us there never was liquid water on the surface of Mars.
Don't you own us all an apology...something about liquid water on Mars' surface?