Matt Williams - Mars Could Have Been Wet for Much Longer Than Previously Believed:
#Mars #Water #WaterOnMars #Rain #SellersExoplanetEnvironmentsCollaboration #SEEC #NoachianPeriod #HesperianPeriod #KaseiValles #LifeOnMars #Habitability #Glaciers #Ocean #ROCKE3D #GlobalClimateModel #GCM #Climate #PlanetaryScience #Astronomy