NASA Finds Organic Molecules on Mars
Summary
NASA’s Curiosity rover found 21 organic molecules in a rock sample from Mars, seven of which were never before seen on the planet. These molecules suggest Mars once had the right chemicals to support life, though no direct evidence of life was found.Key Facts
- The rock sample was taken in 2020 from a clay-rich area on Mount Sharp, formed by ancient lakes and streams.
- Clay minerals help preserve organic compounds over long times.
- Among the new molecules is a nitrogen heterocycle, a chemical building block of RNA and DNA.
- Other molecules found include benzothiophene, which contains carbon and sulfur.
- The analysis was done using Curiosity’s Sample Analysis at Mars (SAM) instrument, which heats rock powder to release gases for testing.
- A special solvent called tetramethylammonium hydroxide (TMAH) helped break down complex molecules for identification.
- Scientists compared these findings with a well-studied meteorite to confirm the results.
- The discovery supports future missions that will study organic molecules on Mars and other places, like ESA’s Rosalind Franklin rover and NASA’s Dragonfly mission to Titan.
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