Mars today is a cold, dry desert with an atmosphere too thin to hold a puddle. It was not always thi...
Mars was once covered in rivers and lakes, and the mystery of where all that water went now has two answers: some was stripped away into space, and a great deal of it may still be there, locked deep in the planet's crust
Mars today is a cold, dry desert with an atmosphere too thin to hold a puddle. It was not always this way. Billions of years ago the planet had rivers,...
Author: Space Daily
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