This past week on Mars, Perseverance made a pit stop near Overlook Mountain to abrade a rock called Old Faithful Geyser. This target is situated within the Western side of the Margin Unit, an area around the upper edge of Jezero Crater that is astrobiologically interesting due to its abundant carbonate.
Scientists collect water and sediment samples to study how the oceans and climate are changing. Eugene Bergh, Author providedWhether the water at your local beach is being roiled by nasty weather or is a perfectly calm expanse of blue, there’s always a great deal going on under the surface. The ocean is composed of various currents and water masses; those currents flow around the world through what is called thermohaline circulation. This circulation drives the distribution of heat, salinity and