"Life on Mars" refers to the ongoing scientific exploration and research aimed at determining whether life ever existed on the planet Mars. Various missions, including rovers like Curiosity and Perseverance, have been sent to study the Martian surface and atmosphere. These missions analyze soil samples, search for signs of water, and look for organic compounds that could indicate past life. Scientists believe that Mars may have had conditions suitable for life billions of years ago. The presence of ancient riverbeds and polar ice caps suggests that liquid water once existed. Understanding Mars's history is crucial for future exploration and the possibility of human colonization.