"Someone described my office as an eight-year-old's daydream," says astronomer Jill Tarter, who has been collecting E.T.-themed office ornaments for 30 years. Tarter was the SETI (Search for Extraterrestrial Intelligence) Institute's first employee, and the inspiration for the character in Carl Sagan's Contact.
A group of British academic researchers has announced plans to band together in a search for extraterrestrial intelligence. Alan Penney, the coordinator of the newly-formed UK SETI Research Network, describes the group's strategy for looking for signals from the stars.
With the NSA conducting surveillance on our data and Google scanning our email, how can we protect our personal information? Jon Xavier, digital producer at Silicon Valley Business Journal, discusses the services that you can use to make your information more secure and private.
Social media guru Clay Shirky looks at "cognitive surplus" — the shared, online work we do with our spare brain cycles. While we're busy contributing to the web in our small ways, we're building a better, more cooperative world.