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The most important things to know when shopping for a camera.
ALS patient and advocate Eric Valor is part of an experimental project to test out a brain-wave-reading headset, technology that could one day give paralyzed people more independence.
The bill was designed to curb NSA surveillance. But many groups withdrew their support after it was "watered down."
The USA Freedom Act, blocked by the Senate, would have curbed powers granted under the Patriot Act, including bulk collection of Americans' phone records.
Secure network connections protect people against snooping and criminals, but it's a hassle for websites. Mozilla, Cisco, the Electronic Frontier Foundation and others want to change that.
The Tesla and SpaceX CEO voices fears that artificial intelligence could become dangerous by the end of the decade.
Ai Weiwei creates an elaborate series of installations for display on Alcatraz, even though he's forbidden from traveling outside China and has never been to the notorious prison site.
Technology from startup Yardarm can tell 911 emergency responders if a police officer's gun has been fired. But Yardarm doesn't call it a "smart gun" -- that would court controversy.
Three researchers helped revolutionize lighting with vastly better energy efficiency and brightness. The light-emitting diodes also are used in data storage, TVs and smartphones.
It was October 4, 2004 that Scaled Composites won the Ansari XPrize. 10 years later, what started as one man's quest to get to space has evolved into an international organization for global good.