Discover the sample analysis in the Mars tool on board NASA Rover Rover Rover Decian, Undecane, and Dodikan molecules in a sample of the storm hole.
This drawing shows long -chain organic molecules Decne, Undecane, Dodecane and Nasa’s Curiosphere Rover. Credit image: NASA / Dan Gallagher.
“The scientific goal of curiosity is to assess the capabilities of Mars’s ability, in the past or present,” said Dr. Caroline Frescentte, a researcher with CNRS and the atmosphere of the Labor Party.
“The sample analysis was devoted to the SAM wing (SAM) on the ROVER for this task by taking an inventory of organic and inorganic vehicles on the surface near Mars as potential chemical biological processes and exploring the nature of its preservation.”
Using the SAM tool, researchers analyzed the molecules emitted by a sample of engraved clay stone called Cumberland collected in Yellowknife Bay, a geological composition in the storm hole.
They were able to discover three long -chain bars: Diane (c10H22), Undecane (c11H24), Dodikan (c12H26).
The researchers said: “These long carbon chains, which contain up to 12 consecutive carbon atoms, can appear similar to the fatty acids that they produce on Earth through biological activity,” the researchers said.
Dudikan is the top of the partial partial partial molecule of a molecular block on the surface of Mars so far.
The scientists said: “The detection of long alkons indicates a variety of sources of organic matter and memorization mechanisms in the Camberland sample.”
“It is expected that clay and sulfate minerals will play an important role in this long -term preservation.”
According to the authors, the source of the long Mars bars is still uncertain.
They said: “Laboratory experiments support a source of saturated shape of straight acids, primary carboxyl acids, i.e. unavailable acids, and Dodecanoic, Tridecanoic for Decane, Undecane, and Dodecane, respectively.”
“Although non -biological processes can form these acids, they are considered global products of biochemistry, land, and possibly Mars.”
“Thus, the source of these molecules and their distribution is of great importance in searching for the potential biosignatures on Mars.”
the Results Appear The facts of the National Academy of Sciences.
_____
Caroline Frescentite And others. 2025. The long chain bars are preserved in the Mars clay stone. pnas 122 (13): E2420580122; Doi: 10.1073/pnas.2420580122