Cloud computing solutions might improve the overall security of government software.
One-time passwords are vulnerable to new hacking techniques.
Engineers put the electric rover through its paces in the Arizona desert.
Researchers say online recommendation systems can be distorted by a minority of users.
Carbon nanotube photovoltaics can wring twice the charge from light.
Chips that use graphite show promise for storing more bits than flash memory.
Amazon's new protocol should make accessing the cloud faster and more reliable.
Nanotube-filled capsules could restore conductivity to damaged electronics.
A new contest could help develop better AI for games and other applications.