Scientists have yet to find any signs of life on Mars,media BGR reported. The Red Planet may have conditions for life to survive, especially deep underground, but scientists have yet to really confirm this. For now, scientists may be close to their goal of finding signs of life on Mars, and NASA’s Curiosity rover has actually found a possible piece of evidence.
A few months ago, NASA announced the discovery of so-called organic molecules on its trusted rover. These compounds may have been produced through some biological process (which means life exists on Mars at some point) or by other non-biological means. Now, a new study published in Astrobiology analyzes the biological pathways that could lead to the creation of these compounds.
These organic compounds, called pyridine, can be produced through biological processes because we have seen its effects on Earth. We have found such compounds in fossil fuels (e.g. coal) and living organisms (e.g. certain types of mushrooms). But why does Mars have such molecules? That’s what scientists are trying to find.
“We have identified several biological pathways that appear to be more likely than chemical ones, but we still need to prove them,” dirk Schulze-Makuch, a co-author of the study, said in a statement. If you find slugs on Earth, you’ll think they’re biological, but on Mars, of course, it has to be a higher standard. “
If these compounds were indeed formed by life on Mars, they may have been formed by bacteria. The bacteria may have been present on Mars billions of years ago. Unfortunately, we may need to wait for new hardware to reach Mars before we can determine. Future Missions to Mars, including the ExoMars Rosalind Franklin rover, could provide more information or help confirm the theory of life on the Red Planet, the researchers said. They expect one of the tools, particularly the Mars Organic Molecular Analyzer, to play an important role in the survey, and the rover carrying the instrument will be launched in July 2020.