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Mars may have had a deep ocean 4 billion years ago, ExoMars to investigate

🇫🇷 GN France MarsSurface ResearchSat, 06 Jun 2026 16:24:00 GMT· translated & edited
Mars may have had a deep ocean 4 billion years ago, ExoMars to investigate

New research suggests Mars may have once hosted a deep ocean, and the ExoMars rover will help confirm this theory.

New findings indicate that Mars may have had a deep ocean approximately 4 billion years ago, a revelation that could reshape our understanding of the planet's early history. These insights are based on data collected from various Mars missions, which have uncovered geological features suggesting the presence of vast bodies of water in the planet's past.

The ExoMars rover, part of the European Space Agency's (ESA) and Roscosmos' joint mission, is set to play a crucial role in verifying these theories. Equipped with advanced scientific instruments, the rover will explore the Martian surface to search for signs of ancient water activity and potential biosignatures.

Scientists believe that if Mars once had an ocean, it could have provided a habitable environment for microbial life. The ExoMars mission aims to analyze soil and rock samples to determine the planet's past climate and its potential to support life.

This mission represents a significant step forward in the search for evidence of life beyond Earth. With its sophisticated tools and targeted exploration, ExoMars could provide critical data that will help answer one of the most profound questions in planetary science: was Mars ever home to life?

Original headline: Mars abritait peut-être un océan profond il y a 4 milliards d'années, et le rover ExoMars va le vérifier - Clubic
Read the full story at GN France Mars →

This article was written by AI and translated into English from the original report. The "AI Analysis" is opinion/commentary. Always refer to the original source for the complete, authoritative story.

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