CAMBRIDGE, Mass. — At first glance, Moderna Therapeutics looks like the most enviable biotech startup in the world. It has smashed fundraising records and teamed up with pharmaceutical giants as it pursues a radical plan to revolutionize...

Science visited Moderna in 2017 for an early look at its innovative RNA-based technology for drugs and vaccines. *Update, 16 November, 9:10 a.m.: Moderna announced today that its experimental mRNA vaccine for COVID-19 achieved 94.5% protective...