Ancient Mars microbes triggered climate change that made it hard for them to survive

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Ancient Mars microbes triggered climate change that made it hard for them to survive
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Tereza is a London-based science and technology journalist, aspiring fiction writer and amateur gymnast. Originally from Prague, the Czech Republic, she spent the first seven years of her career working as a reporter, script-writer and presenter for various TV programmes of the Czech Public Service Television. She later took a career break to pursue further education and added a Master's in Science from the International Space University, France, to her Bachelor's in Journalism and Master's in Cultural Anthropology from Prague's Charles University. She worked as a reporter at the Engineering and Technology magazine, freelanced for a range of publications including Live Science, Space.com, Professional Engineering, Via Satellite and Space News and served as a maternity cover science editor at the European Space Agency.

gradually created an environment conducive to more complex life forms, the exact opposite happened on Mars, according to a team of scientists led by astrobiologist Boris Sauterey from the Institut de Biologie de l’Ecole Normale Supérieure in Paris, France.

Sauterey and his team conducted a complex computer modeling study that simulated the interaction of what we know about the ancientand lithosphere of Mars with hydrogen-consuming microbes similar to those that existed on ancient Earth. The researchers found that while on Earth the methane produced by those microbes gradually warmed the planet, Mars instead cooled down, driving the microbes into deeper and deeper layers of the planet's crust to survive.

"At that time, Mars would have been relatively wet and relatively warm, between minus 10 degrees and 20 degrees Celsius [14 degrees Fahrenheit and 68 degrees Fahrenheit]," Sauterey told Space.com."It had liquid water in the form of rivers, lakes and maybe oceans on its surface. But its atmosphere was quite different from that of Earth. It was as dense, but richer in carbon dioxide and hydrogen, both of which acted like potent warming gasses.

Sauterey and his team identified three locations where traces of these ancient microbes would have most likely survived closer to the surface. These locations include

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