https://scitechdaily.com/nasas-curiosity-rover-measures-key-life-ingredient-on-mars-for-first-time/
For the first time, scientists using data from NASA’s Curiosity rover
measured
the total organic carbon – a key component in the molecules of life – in
Martian rocks.
“Total organic carbon is one of several measurements [or indices] that
help us
understand how much material is available as feedstock for prebiotic
chemistry
and potentially biology,” said Jennifer Stern of NASA’s Goddard Space Flight
Center in Greenbelt, Maryland. “We found at least 200 to 273 parts per million
of organic carbon. This is comparable to or even more than the amount found
in rocks in very low-life places on Earth, such as parts of the Atacama
Desert in
South America, and more than has been detected in Mars meteorites.”
...