اكتشف العلماء توقيعًا كيميائيًا مخفيًا يمكن أن يكشف عن حياة غريبة

Scientists may have found a powerful new way to hunt for alien life — not by searching for specific molecules, but by looking for hidden patterns in how those molecules are organized. Researchers discovered that living systems leave behind a kind of chemical “fingerprint” in the statistical distribution of amino acids and fatty acids, one that consistently differs from nonliving chemistry.