Did NASA's Perseverance Rover Actually Find Evidence of Life on Mars? We Need to Haul Its Samples Home to Find Out, Scientists Say
The Perseverance rover's 2024 sample named 'Sapphire Canyon' shows minerals linked to microbial life, but scientists emphasize further Earth analysis is required to confirm biological origin.
- On September 10, 2025, NASA held a press conference announcing the Perseverance rover found possible biosignatures in a Mars rock sample called Cheyava Falls from Jezero Crater.
- This discovery follows the rover's 2021 landing in Jezero, an ancient lake and river delta site chosen for its high potential for past life, and its collection of 33 of 38 samples by July 2025.
- Analysis revealed millimeter-scale 'leopard spots' rich in vivianite and greigite minerals, which on Earth are linked to microbial activity, but could also form through non-biological processes.
- Katie Stack Morgan cautioned at the press conference that confirming any biosignature requires extraordinary evidence and further study, with future Mars Sample Return missions aiming to bring samples to Earth for analysis.
- These results indicate that Jezero’s ancient lake environment was more conducive to life than previously recognized and represent important progress in exploring Mars’s capacity to have supported past life, although further confirmation is still needed.
21 Articles
21 Articles


An analysis of the Mars data collected last year by the Perseverance rover concludes that a rock could carry traces of ancient microbial life. But to be sure, it will probably take the sample back to Earth.
This Wednesday, NASA could verify the intriguing theory that David Bowie wondered in the 1970s: is there extraterrestrial life on Mars? At a press conference, the U.S. space agency revealed the most suggestive evidence to date of ancient life on Mars, as never before found. In a sample collected by the rover Perseverance, NASA's explorer vehicle on Mars, a reddish rock was found on an ancient bed of a dry river of the Jezero crater that could co…
Did NASA's Perseverance rover actually find evidence of life on Mars? We need to haul its samples home to find out, scientists say
We'll likely need to get Perseverance's samples to Earth to determine if they do indeed harbor evidence of Mars life — but the prospects of such a mission are cloudy at best.
NASA rover finds possible evidence of ancient life on Mars
Scientists believe that leopard-like markings found on rock samples from Mars may represent possible evidence of ancient life on the Red Planet. These samples were collected in 2024 by NASA’s Perseverance rover and the findings have now been published in the journal Nature. Signs of possible ancient life NASA’s Acting Administrator, Sen Duffey,l stated that after a year-long analysis, scientists have uncovered the clearest potential indication y…
What has a rover on Mars found in rocks this time?
Humanity has been wondering about Mars for ages, inspiring a spirit of exploration and curiosity that's encouraged a perseverance to sojourn there in search of life. Now that we've found our best evidence of ancient microbial life on the red planet, all we need now is the opportunity to bring that evidence back to Earth for more testing.
Rob 'Preservation' discovers rocks that can indicate the presence of old microsc peaks. "We've never been close," says NASA.
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