RNA (ribonucleic acid) is a nucleic acid polymer where the carbohydrate is ribose. RNA is generally single-stranded, as DNA is transcribed by RNA polymerases into mRNA (messenger RNA), which is ...

Messenger RNA (mRNA) vaccines hold promise for creating new and improved immunizations; however, their delivery is challenging in terms of compliance, reactogenicity, cost and scalability.

NASA’s OSIRIS-REx asteroid probe is giving scientists an even better look at the surface of the space rock known as Bennu now that it’s moved … ...