It could be gas fluidizing dirt, or it could be liquid water. Well, there's the whole range of significance. To a geologist, it means that there is yet another material process that can shape the surface of Mars, one which we had never dreamed was active on Mars. And as a geologist and geo-morphologist who studies how things look on planets, that's very exciting. That was the next thing I wanted to say.
Water is an extremely valuable resource.
For human exploration, you can use it for water to drink, you can use it to extract oxygen for breathing. You can use extracted oxygen and hydrogen in fuel cells to transport power for electricity. And it also, hydrogen and oxygen is a propellant to bring you back to Earth. So it is one of the most valuable resources you could find on another planet. You haven't found such water.