Sedimentary Layerses News Today

Are becoming quite interesting. >> yes, they are. all right, for years there has been overwhelming evidence that there was water, once existed, on the surface of mars. >> now you have this new nasa report suggesting liquid water likely exists below the surface at this very moment. >> someone is excited. >> whoa! >> the history of the world. universe, our own origins. we are jend oined to connect al these dots. >> when you say that. we know liquid water existed. river beds are dry. sedimentary la...