www.stiripesurse.ro/comete-originea-vietii-simular

A new study challenges the long-held hypothesis that comets delivered organic molecules essential for life on Earth. Researchers conducted 100,000 simulations to assess the impact of comets, finding that most collisions would have destroyed these molecules due to extreme speeds and temperatures. The study indicates that while comets contain organic materials, the likelihood of them surviving impacts in sufficient concentrations is very low. The research highlights the difficulties posed by the high kinetic energy during collisions, which can obliterate fragile organic compounds. Hydrogen cyanide, a key molecule in prebiotic chemistry, was examined, revealing that even its survival during comet impacts is questionable, suggesting other organic compounds would fare even worse.