What's your gut feeling?
As scientists turn the lens on gastrointestinal microbes, a handful of tests offers ways to assess one's gut and ward off disease.
Bright sparks
Three start-ups zoom in on water, motor and antibodies.
What’s cooking in the lab?
With cultivated meat, scientists give carnivores something to chew on while also preserving the environment.
Start-up stars
Profiles of three entrepreneurial ideas in various stages of evolution.
