discovery close to center of Via Lattea a large amount of bricks at the base of the life on EARTH: I'm molecules calls nitriles which constitute theRNA, the single-propeller brother of the Dna, and which could have arrived on our planet thanks to the "passage" offered to them by meteorites e commits.
The discovery is due to international research led by Spanish Center di Astrobiology di Madrid, with the Italian contribution of theUniversity from Bologna andUniversity Frederick II di Napoli. The study, published in the journal Frontiers in Astronomy and Space Sciences, allows us to take a step forward in understanding the mechanisms that allowed the birth of the life on EARTH and that may have made it possible in the rest of the universe as well.
Researchers led by Victor Rivilla, using two telescopes in Spain, they observed the spectrum electromagnetic issued by molecular cloud G+0.693-0.027, located near the center of our galaxyMolecular clouds are dense, cold regions suitable for the formation of complex molecules.
“The content of this molecular cloud is similar to that of other star-forming regions in our galaxy, and also to that of Solar System objects such as comets.”, explains Rivilla. “This means that his study - adds - can help us understand the chemical ingredients that were available in the nebula that gave birth to our planetary system.”
The wide range of compounds discovered in the cloud are the precursors molecular key to the 'RNA world' hypothesis, according to which the life on EARTH It was originally based only on theRNA, while Dna and proteins evolved at a later time. The results of the study therefore provide support for this theory, also suggesting that the basic building blocks of life could have arrived on EARTH inside commits e meteorites during a period characterized by frequent impacts, between 4,1 e 3,8 billion years ago.
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