Microbiology
Origin-of-Life Study Points to Chemical Chimeras, Not RNA
Origin-of-life researchers have usually studied the potential of pure starting materials, but messy chemical composites may kick-start life more effectively.
Immune Cells Measure Time to Identify Foreign Proteins
T-cells identify what belongs in the body by timing how long they can bind to it.
Scientists Discover Nearly 200,000 Kinds of Ocean Viruses
New work raises the estimated diversity of viruses in the seas more than twelvefold and lays the groundwork for a better understanding of their impact on global nutrient cycles.
What Defines a Stem Cell?
Our cells have more diverse regenerative capabilities than anyone expected.
What Defines a Stem Cell? Scientists Rethink the Answer
As it becomes clear that the body’s cells have more diverse regenerative capabilities than expected, experts have had to reconsider their approach to stem cell research.
“Traffic Jams” of Cells Help to Sculpt Embryos
By measuring mechanical forces inside an embryo for the first time, researchers have shown how a physical “jamming” mechanism assists development.










