Water Discovered on Mars 4 Billion Years Ago

Tàu Curiosity (Ảnh: NASA)

The Mars Rover Curiosity has provided new evidence that water existed on the planet’s surface approximately 3.7 billion years ago. This discovery indicates that Mars had water for a longer period than previously believed, running dry around 3 billion years ago[^1^]. While scientists have found evidence of water on Mars, they remain uncertain whether it existed as liquid, ice, or briny water under pressure[^1^].

Longer Duration of Water on Mars

Hình ảnh vệ tinh về bề mặt sao Hỏa (Ảnh: SWNS)

Dr. Steven Banham, from the Earth Science and Engineering Department at Imperial College London, shares the same view. According to him, Martian rocks indicate that water may have been abundant and present for a longer period than previously thought. The question remains as to what evidence water may have left behind. It could be in the form of compressed liquid, trapped and deformed sediment, or frozen and thawed repeatedly, causing deformation. It could also be briny water undergoing significant temperature fluctuations[^1^].

Possibility of Life on Mars

Researchers speculate that life may have developed on Mars around the same time as on Earth. However, while environmental conditions on Earth remained favorable for life, conditions on Mars deteriorated[^1^]. The Curiosity Rover is expected to continue its mission for several more years, unveiling more secrets about the red planet[^1^].

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[^1^]: Read more