New evidence of water on Mars has been found, increasing the likelihood that there was once alien life on the planet. A rover discovered that water has flowed on the red planet within the last 1.4 million years. The rover landed on Mars two years ago and has detected water on the planet’s sand dunes in low altitude areas. Although Mars is commonly believed to be dry after losing most of its atmosphere, scientists have previously believed that water has existed on the planet in solid and gas forms.
The discovery was made by China’s Zhurong Mars rover. The study, led by Professor Xiaoguang Qin at the Chinese Academy of Sciences, reads: “Does liquid water recently exist on the contemporary surface of Mars? This question is critical for understanding the recent climatic evolution of the polar ice caps, the habitable environment, and even the potential for life on Mars. Previous studies show that abundant liquid water existed on early Mars. However, as the early atmosphere has disappeared, the climate and environment on Mars have undergone substantial changes.”
The study continues: “With the resultant temperature and pressure conditions becoming unfavourable for the stability of liquid water on Mars today. Nevertheless, the observed liquid drops on the robotic arms of the Phoenix rover indicate that conditions allowing for the existence of liquid saline water emerge at high-latitude regions of Mars in summer because the thermodynamics of freeze-thaw cycles can lead to the formation of saline solutions with freezing temperatures lower than current summer ground temperature.”
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