Organic molecules have once again been found on the surface of Mars, which could provide scientists with fresh clues as to whether life has ever existed on the Red Planet.
Similar molecules that contain predominantly carbon, hydrogen, oxygen, nitrogen and sulphur have previously been detected in Martian meteorites and in the planet's Gale crater.
Now, NASA's Perseverance rover has detected organic compounds in the Red Planet's Jezero Crater, an ancient lake basin with 'high potential' for past habitability.
The findings suggest that a more complex system than previously thought may have existed in the past.
Learning more about this organic matter could help experts work out whether there has ever been life on Mars.
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