Gentex Corp.'s rearview mirror camera display enables drivers to see objects and people behind the vehicle using a tiny camera mounted to the back of the car. Courtesy of Gentex Corp. hide caption

itoggle caption Courtesy of Gentex Corp.

Astronaut Steve Bowen works outside the International Space Station's Quest airlock during Monday's spacewalk. Bowen's spacewalk was unexpectedly extended by a computer malfunction. NASA TV hide caption

itoggle caption NASA TV

Variations On Chocolate Cake: Google's new Recipe View is designed to help cooks sift through recipes on the web. Here, the results for a search for Molten Chocolate Cake. NPR hide caption

itoggle caption NPR

A still from the video game Call of Juarez: The Cartel. YouTube hide caption

itoggle caption YouTube

Researchers found that as groups of black-tailed prairie dogs and other rodents became larger, it also became easier to identify individuals. Kimberly Pollard/UCLA hide caption

itoggle caption Kimberly Pollard/UCLA

A mobile phone shows a Skype application. Josep Lago/AFP/Getty Images hide caption

itoggle caption Josep Lago/AFP/Getty Images