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Asteroid Bennu Samples ⁣Reveal Building Block of Life: Tryptophan

A new and comprehensive study of the samples from asteroid Bennu, which arrived on Earth on September 23, 2023 thanks to NASA’s OSIRIS-REx spacecraft, has yielded a surprising result. According‌ to a recent study published in the journal ⁤ Proceedings of⁤ the National ‌Academy of⁣ Sciences (PNAS), debris harbors tryptophan, an amino acid essential for ⁢life and which is a‌ direct chemical precursor ‌of serotonin, popularly known as happiness hormone.

This is the ‌ first time that this amino acid has been detected in materials⁤ of ​extraterrestrial origin, which has⁢ been ​a boost for those convinced of the theory of panspermia.Tryptophan, in addition to being the precursor of serotonin, plays‌ a‌ key role ‌in the regulation ⁢of mood and humor at a cerebral level.

To reach this conclusion, the team of researchers led⁣ by the geochemist Angel Mojarro carried‌ out⁤ a‍ detailed analysis of the fragments. After finding ⁤tryptophan,he ventured to give a theory about why it ⁣had never been detected in meteorites that reached Earth.‍ Apparently, it is​ a very fragile organic molecule, which is why it is impossible ⁤to withstand friction of entry into the ⁣atmosphere.