Environment Creating an Atlas of the Cells in the Human Body Two biologists are working on a moonshot project to identify and map every cell inside of us. Josh Peters
Environment In the Microbiome, Competition Does a Body Good The dog-eat-dog world of human gut bacteria keeps stomachs stable and bodies healthy, new research suggests. Nathan Collins
Environment How to Explain Spontaneous Human Combustion While there's no proof that any human being has ever suddenly burst into flames and died, there's also no proof that it hasn't happened. Katie Heaney