Chinese supercomputer blows past the US record for speedy hardware.
The Stuxnet malware has infiltrated industrial computer systems worldwide. Now, cyber security sleuths say it's a search-and-destroy weapon meant to hit a single target. One expert suggests it may be after Iran's Bushehr nuclear power plant.
Fuel-efficient vehicles are focus of X Prize. One winner is an ultralight car that gets 102 miles per gallon.
Oil spills in recent weeks, from Canadian-owned pipelines that supply Midwest refineries, are another sign of nation's aging infrastructure. Latest spill expected to raise Midwest gas prices by 30 cents a gallon for several weeks.
The National Research Council's once-a-decade study, released Friday, proposes the top priorities for US space science during the coming decade. NASA uses it as a blueprint.
The electric grid is a massive network that delivers 14.02 quadrillion BTUs of energy a year to Americans. Getting off it altogether is virtually impossible.
Obama, at a Ford plant in Chicago on Thursday, said the automaker's plan to increase auto exports fits with his aim of doubling sales of American products abroad over the next five years. The plant will produce a more fuel-efficient 2011 Explorer for foreign buyers.
Industry and environmentalist groups agreed Tuesday on tougher efficiency standards for home appliances that, over the next 30 years, could save enough energy to power 40 percent of American homes for a year.
With its $5 million investment in the Indiana startup Bright Automotive, which plans to build a plug-in hybrid delivery truck, GM potentially gains access to new technology and maybe a new product.
Chevy Volt will sell for $41,000 before a federal tax credit, while the Nissan Leaf will go for $32,780 before the credit. The two cars are trying to jump-start the US electric-car industry.