Scientists at the University of Maryland think that large quantities of artificial meat could be produced to supply the world with animal-free meat products, like chickenless nuggets. This is based on experiments for NASA, that created small amounts of muscle fibre cultured from single cells. According to the researchers, larger quantities could be grown in thin sheets and then stacked up to create thickness. Of course, they need to figure out a way to exercise it to make it taste like regular meat.