Ancient Martian microbes may have made their planet unlivable due to climate change

Ancient microbes caused a climate change on Mars that made the planet less habitable, which may have eventually led to their extinction, a new climate modeling study suggests.

According to the study, simple microbes that feed on hydrogen and secrete methane could have thrived Mars about 3.7 billion years ago, around the same time that primitive life was dominant Earthits primordial oceans. But while he was on Earth his appearance simple life 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 (IBENS) in Paris, France.

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