Story highlights
- The creation of in vitro, or "clean," meat involves extracting stem cells from animals
- The extracted cells are grown and multiplied in a lab to create meat
- Experts' conservative estimates say clean meat will on store shelves by 2021
How close are we to a hamburger grown in a lab?
Photos: Fearing the future?
Fearing the future? – Americans are wary of many sci-fi developments in science and technology, according to a recent Pew survey. Read on to see U.S. adults' opinions about drones, robot nurses, lab-engineered meat and other futuristic advancements.
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Photos: Fearing the future?
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