Researchers have created a robotic fly for covert surveillance.
Musicians can now control sound effects for electric instruments by waving a hand.
A new imaging system could help surgeons remove small but deadly traces of cancer.
Geckos and mussels inspire a better glue.
A new device that measures T cells in HIV patients will soon be tested in Africa.
Kevin Rose, founder of Digg.com, talks about why it's good that the site is out of control.
New facial-recognition software features a test that can root out fraudsters trying to pass off a photograph as a real person.
The head of Google Research talks about his group's projects.
A new nanomaterial could lead to novel types of displays.