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They believe the floods were caused by a huge meteoric impact that generated enough heat to melt massive amounts of ice on the planet. The event released carbon dioxide and methane, which combined with water vapor to form a hot, humid climate for a short time. This caused torrential rains across the planet and waters (along with sediment) that slid off Mt. Sharp flooded Gale Crater. So what exactly does this mean?
As you probably know, the presence of water could mean the presence of life. That is why NASA and other space agencies have been trying to find evidence of water in other celestial bodies in our solar system. “The planet had the necessary conditions to support the presence of liquid water on the surface, and on Earth, where there is water, there is life,” explained Fairén. It is now the job of the Perseverance rover to find evidence of ancient life in our planetary neighbor after it lands on the Martian surface in February 2021.