Why explore Mars

When scientists view the Martian surface, they see branching streams, river valleys, basins, and deltas, suggesting that the planet may have once had a vast ocean covering its northern hemisphere. It was likely wrapped in a thick atmosphere able to maintain liquid water.

But somehow, the planet went through a dramatic transformation. Exploring Mars can help scientists learn about climate change that can alter planets. Learning more about Mars may equip us to someday make a living there.