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NASA Found a Possible Sign of Life on Mars. The Sample Is Still Stuck There
Newsweek • • science
Key Points:
- NASA's Perseverance rover discovered a Martian rock sample in Jezero Crater in July 2024, which may contain evidence of ancient microbial life, but plans to retrieve the samples have been delayed due to budget cuts and technical challenges.
- The Mars Sample Return (MSR) mission, a joint effort with the European Space Agency, is currently postponed with no set date, though returned samples could revolutionize understanding of Mars' history and prepare for human exploration.
- Scientists emphasize that analyzing Martian samples on Earth would enable precise dating and detailed chemical studies, including dust characterization critical for future human missions, but definitive proof of life remains uncertain.
- The high cost and technical difficulties, such as launching a rocket from Mars' surface, have led to calls for downsizing the mission or involving commercial partners to reduce expenses and increase feasibility.
- Meanwhile, China plans to launch its Tianwen-3 Mars sample return mission in 2028, aiming to bring back 500 grams of Martian material by 2031 to search for biosignatures and study Mars' habitability conditions.
