The human liver cells in Linda Griffith's miniature device behave just as they would in the body, permitting more accurate drug and toxin testing.
If they're allowed out of the lab and into the field, crops genetically engineered to reproduce through cloning could feed the world's poor.
MIT's mental health services are undergoing significant change.
A top roboticist says robots will improve-not replace-manned space flight.
Want people to use an innovation? First make it worth the effort.