Mar 6 • 10:55 UTC 🇪🇪 Estonia ERR

Chilean desert bacteria could withstand even an asteroid impact

A research team from Johns Hopkins University discovered that the Earth’s most resilient bacterium can survive extreme pressures comparable to those of an asteroid impact, supporting the panspermia hypothesis of life spreading between planets.

Researchers at Johns Hopkins University have revealed that Deinococcus radiodurans, often referred to as the toughest bacterium on Earth, possesses the ability to survive under extreme conditions, including tremendous pressures akin to those generated by an asteroid impact. This extraordinary resilience not only highlights the bacterium's ability to endure extreme cold and radiation but also raises questions about the potential for life to exist beyond Earth. The bacterium, primarily found in Chile's deserts, has fascinated scientists for years due to its remarkable adaptations that allow it to survive even in desiccated environments. In light of its outlandish capabilities, researcher Lily Zhao and her team conducted experiments to test the limits of this microbe's endurance against various destructive forces. Interestingly, the experimental apparatus gave in to the mechanical pressure before the microbe did, showcasing its robust cellular structure and survival strategies. The implications of these findings could extend into the realms of astrobiology and the study of life in extreme environments. The study bolsters the lithopanspermia hypothesis, which posits that life could potentially travel between celestial bodies, thereby opening new avenues for research into how life may have originated and spread across the universe.

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