Dna
2 articles
Life Sciences
Scientists Expand Genetic Alphabet From 4 to 8 Letters
E. coli RNA polymerase, the core enzyme of bacterial gene expression, accurately transcribes a synthetic eight-letter DNA alphabet, effectively doubling life's fundamental information capacity, accord
Jina Park·September 5, 2026
Earth & Environment
NASA study finds phosphorus and nitrogen key for life origin
In a lab at NASA's Goddard Space Flight Center, scientists watched a chaotic soup of mixed RNA-DNA precursors spontaneously sort themselves into distinct, replicating strands.
Mateo Rojas·June 13, 2026