Biology
4 New DNA Letters Double Life's Alphabet
Synthetic DNA seems to behave like the natural variety, suggesting a broader swathe of chemicals could support life than the four that evolved on Earth
Stories by Matthew Warren
Space
Which Planets Do Space Scientists Love Most—and Least?
As BepiColombo heads to long-neglected Mercury, a look at which planets attract scientific missions, and why
Medical & Biotech
Giant Leap for Gene-Based Testing Estimates Risk of Heart Disease, Breast Cancer and Others
This new approach to predictive medicine takes genomics research by storm, but still generates controversy
Evolution
Genome Study Upends Understanding of How Language Evolved
Research casts doubt on the idea that a gene linked to language evolution is special to modern humans
